Remove sleep and reset jgit version

services/git-bridge/pom.xml

@@ -81,12 +81,12 @@
         <dependency>
             <groupId>org.eclipse.jgit</groupId>
             <artifactId>org.eclipse.jgit</artifactId>
-            <version>4.6.0.201612231935-r</version>
+            <version>4.4.1.201607150455-r</version>
         </dependency>
         <dependency>
             <groupId>org.eclipse.jgit</groupId>
             <artifactId>org.eclipse.jgit.http.server</artifactId>
-            <version>4.6.0.201612231935-r</version>
+            <version>4.4.1.201607150455-r</version>
         </dependency>
         <dependency>
             <groupId>org.xerial</groupId>

services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/repo/GitProjectRepo.java

@@ -125,11 +125,6 @@ public class GitProjectRepo implements ProjectRepo {
                     proc.getErrorStream(),
                     StandardCharsets.UTF_8
             ));
-            try {
-                Thread.sleep(1000000);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
             throw new IOException("git gc error");
         }
         Log.info("[{}] git gc successful", projectName);