Simplify setDoNotDelta() to always set the flag

This method is only invoked with true as the argument.
Remove the unnecessary parameter and branch, making
the code easier for the JIT to optimize.

Change-Id: I68a9cd82f197b7d00a524ea3354260a0828083c6

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/ObjectToPack.java

@@ -241,11 +241,8 @@ public class ObjectToPack extends PackedObjectInfo {
 		return (flags & DO_NOT_DELTA) != 0;
 	}
 
-	void setDoNotDelta(boolean noDelta) {
-		if (noDelta)
+	void setDoNotDelta() {
 		flags |= DO_NOT_DELTA;
-		else
-			flags &= ~DO_NOT_DELTA;
 	}
 
 	boolean isEdge() {

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriter.java

@@ -1157,13 +1157,13 @@ public class PackWriter {
 					if (ignoreMissingUninteresting) {
 						ObjectToPack otp = sizeQueue.getCurrent();
 						if (otp != null && otp.isEdge()) {
-							otp.setDoNotDelta(true);
+							otp.setDoNotDelta();
 							continue;
 						}
 
 						otp = objectsMap.get(notFound.getObjectId());
 						if (otp != null && otp.isEdge()) {
-							otp.setDoNotDelta(true);
+							otp.setDoNotDelta();
 							continue;
 						}
 					}
@@ -1176,10 +1176,10 @@ public class PackWriter {
 
 				long sz = sizeQueue.getSize();
 				if (limit <= sz || Integer.MAX_VALUE <= sz)
-					otp.setDoNotDelta(true); // too big, avoid costly files
+					otp.setDoNotDelta(); // too big, avoid costly files
 
 				else if (sz <= DeltaIndex.BLKSZ)
-					otp.setDoNotDelta(true); // too small, won't work
+					otp.setDoNotDelta(); // too small, won't work
 
 				else
 					otp.setWeight((int) sz);