UploadPack: Remove redundant specification of type

Change-Id: I257635ed3f9ce012e03a3c45ed666fb9195019e0
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java

@@ -1072,7 +1072,7 @@ public class UploadPack {
 			verifyClientShallow();
 		}
 		if (depth != 0 || shallowSince != 0 || shallowExcludeRefs != null) {
-			shallowCommits = new ArrayList<ObjectId>();
+			shallowCommits = new ArrayList<>();
 			processShallow(shallowCommits, unshallowCommits, false);
 		}
 		if (!clientShallowCommits.isEmpty())