ChangeEmailValidator: Remove unused GitRepositoryManager

Change-Id: I044016a1c8513a1da703b2de14654634374595e2
diff --git a/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ChangeEmailValidator.java b/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ChangeEmailValidator.java
index 6deb42c..7ee8f95 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ChangeEmailValidator.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ChangeEmailValidator.java
@@ -23,7 +23,6 @@
 import com.google.gerrit.server.config.PluginConfigFactory;
 import com.google.gerrit.server.config.ProjectConfigEntry;
 import com.google.gerrit.server.events.CommitReceivedEvent;
-import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.git.validators.CommitValidationException;
 import com.google.gerrit.server.git.validators.CommitValidationListener;
 import com.google.gerrit.server.git.validators.CommitValidationMessage;
@@ -69,18 +68,15 @@
   public static final String KEY_ALLOWED_COMMITTER_EMAIL_PATTERN = "allowedCommitterEmailPattern";
   private final String pluginName;
   private final PluginConfigFactory cfgFactory;
-  private final GitRepositoryManager repoManager;
   private final ValidatorConfig validatorConfig;
 
   @Inject
   ChangeEmailValidator(
       @PluginName String pluginName,
       PluginConfigFactory cfgFactory,
-      GitRepositoryManager repoManager,
       ValidatorConfig validatorConfig) {
     this.pluginName = pluginName;
     this.cfgFactory = cfgFactory;
-    this.repoManager = repoManager;
     this.validatorConfig = validatorConfig;
   }