Remove prefix per hanwen@ -- automatically added.

The plugin prefix is automatically added by the MetricMaker bound to
plugins.

Change-Id: I0442167b4a02f30b4126a0c3e947b6c61b1352d5

src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightConfig.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightConfig.java b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightConfig.java
index 4a49b2d..5c30033 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightConfig.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightConfig.java
@@ -102,19 +102,19 @@
     Metrics(MetricMaker metricMaker) {
       readConfigTimer =
           metricMaker.newTimer(
-              "plugins/copyright/read_config_latency",
+              "read_config_latency",
               new Description("Time spent reading and parsing plugin configurations")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS));
       checkConfigTimer =
           metricMaker.newTimer(
-              "plugins/copyright/check_config_latency",
+              "check_config_latency",
               new Description("Time spent testing proposed plugin configurations")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS));
       testConfigTimer =
           metricMaker.newTimer(
-              "plugins/copyright/test_config_latency",
+              "test_config_latency",
               new Description("Time spent testing configurations against difficult file pattern")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS));

src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightReviewApi.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightReviewApi.java b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightReviewApi.java
index 318c893..0c41d7d 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightReviewApi.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightReviewApi.java
@@ -102,35 +102,35 @@
       Field<String> project = Field.ofString("project", "project name");
       reviewCount =
           metricMaker.newCounter(
-              "plugin/copyright/review_count",
+              "review_count",
               new Description("Total number of posted reviews").setRate().setUnit("reviews"));
       commentCount =
           metricMaker.newCounter(
-              "plugin/copyright/comment_count",
+              "comment_count",
               new Description("Total number of posted review comments")
                   .setRate()
                   .setUnit("comments"));
       reviewTimer =
           metricMaker.newTimer(
-              "plugin/copyright/review_latency",
+              "review_latency",
               new Description("Time spent posting reviews to revisions")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS));
       reviewCountByProject =
           metricMaker.newCounter(
-              "plugin/copyright/review_count_by_project",
+              "review_count_by_project",
               new Description("Total number of posted reviews").setRate().setUnit("reviews"),
               project);
       commentCountByProject =
           metricMaker.newCounter(
-              "plugin/copyright/comment_count_by_project",
+              "comment_count_by_project",
               new Description("Total number of posted review comments")
                   .setRate()
                   .setUnit("comments"),
               project);
       reviewTimerByProject =
           metricMaker.newTimer(
-              "plugin/copyright/review_latency_by_project",
+              "review_latency_by_project",
               new Description("Time spent posting reviews to revisions")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS),

src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightValidator.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightValidator.java b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightValidator.java
index cd71e85..0a77834 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightValidator.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/copyright/CopyrightValidator.java
@@ -99,54 +99,54 @@
       Field<String> branch = Field.ofString("branch", "branch name");
       scanCount =
           metricMaker.newCounter(
-              "plugin/copyright/scan_count",
+              "scan_count",
               new Description("Total number of copyright scans").setRate().setUnit("scans"));
       scanRevisionTimer =
           metricMaker.newTimer(
-              "plugin/copyright/scan_revision_latency",
+              "scan_revision_latency",
               new Description("Time spent scanning entire revisions")
                   .setCumulative()
                   .setUnit(Units.MILLISECONDS));
       scanFileTimer =
           metricMaker.newTimer(
-              "plugin/copyright/scan_file_latency",
+              "scan_file_latency",
               new Description("Time spent scanning each file")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS));
       scanCountByProject =
           metricMaker.newCounter(
-              "plugin/copyright/scan_count_by_project",
+              "scan_count_by_project",
               new Description("Total number of copyright scans").setRate().setUnit("scans"),
               project);
       scanRevisionTimerByProject =
           metricMaker.newTimer(
-              "plugin/copyright/scan_revision_latency_by_project",
+              "scan_revision_latency_by_project",
               new Description("Time spent scanning entire revisions")
                   .setCumulative()
                   .setUnit(Units.MILLISECONDS),
               project);
       scanFileTimerByProject =
           metricMaker.newTimer(
-              "plugin/copyright/scan_file_latency_by_project",
+              "scan_file_latency_by_project",
               new Description("Time spent scanning each file")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS),
               project);
       scanCountByBranch =
           metricMaker.newCounter(
-              "plugin/copyright/scan_count_by_branch",
+              "scan_count_by_branch",
               new Description("Total number of copyright scans").setRate().setUnit("scans"),
               branch);
       scanRevisionTimerByBranch =
           metricMaker.newTimer(
-              "plugin/copyright/scan_revision_latency_by_branch",
+              "scan_revision_latency_by_branch",
               new Description("Time spent scanning entire revisions")
                   .setCumulative()
                   .setUnit(Units.MILLISECONDS),
               branch);
       scanFileTimerByBranch =
           metricMaker.newTimer(
-              "plugin/copyright/scan_file_latency_by_branch",
+              "scan_file_latency_by_branch",
               new Description("Time spent scanning each file")
                   .setCumulative()
                   .setUnit(Units.MICROSECONDS),