QuoteUtil: Remove unneeded nesting

According to our project style guidelines we avoid unneeded nesting.
Also in Eclipse this is shown as a warning.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I2b2f41512ca49715937ee518dc0854732182facc
diff --git a/src/main/java/com/googlesource/gerrit/plugins/download/command/QuoteUtil.java b/src/main/java/com/googlesource/gerrit/plugins/download/command/QuoteUtil.java
index a08cbae..4154c9f 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/download/command/QuoteUtil.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/download/command/QuoteUtil.java
@@ -22,8 +22,7 @@
     // Avoid quotes if the chars are entirely "safe".
     if (string.matches("^[a-zA-Z0-9@_.:/-]+$")) {
       return string;
-    } else {
-      return "\"" + string + "\"";
     }
+    return "\"" + string + "\"";
   }
 }