Minor code cleanups in TipsStartupService

Uses != instead of ! ==

Change-Id: I15665fb30cb01117f68d60697db1d45be32aa12c
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/org.eclipse.tips.ide/src/org/eclipse/tips/ide/internal/TipsStartupService.java b/org.eclipse.tips.ide/src/org/eclipse/tips/ide/internal/TipsStartupService.java
index 8407b2a..7deeef8 100644
--- a/org.eclipse.tips.ide/src/org/eclipse/tips/ide/internal/TipsStartupService.java
+++ b/org.eclipse.tips.ide/src/org/eclipse/tips/ide/internal/TipsStartupService.java
@@ -54,7 +54,7 @@
 
 	@Override
 	public void handleEvent(Event event) {
-		if (!(TipsPreferences.getStartupBehavior() == TipManager.START_DISABLE)) {
+		if (TipsPreferences.getStartupBehavior() != TipManager.START_DISABLE) {
 			Job job = new Job(Messages.Startup_1) {
 				@Override
 				protected IStatus run(IProgressMonitor monitor) {