Remove unused import

Change-Id: I28fb7ded7a024055a23b715fd17e55a64e715916

src/main/java/com/googlesource/gerrit/plugins/manager/repository/JenkinsCiPluginsRepository.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/manager/repository/JenkinsCiPluginsRepository.java b/src/main/java/com/googlesource/gerrit/plugins/manager/repository/JenkinsCiPluginsRepository.java
index 5214314..521ec39 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/manager/repository/JenkinsCiPluginsRepository.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/manager/repository/JenkinsCiPluginsRepository.java
@@ -16,7 +16,6 @@
 
 import com.google.common.base.Function;
 import com.google.common.base.Optional;
-import com.google.common.base.Strings;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
 import com.google.inject.Inject;