Simplification of boolean expression

Motivation:

Simplify code and reduction the logical operations.

Modifications:

Simplify boolean expression.

Result:

Code less and simpler.

codec/src/main/java/io/netty/handler/codec/LengthFieldBasedFrameDecoder.java

@@ -467,8 +467,7 @@ private void failIfNecessary(boolean firstDetectionOfTooLongFrame) {
             long tooLongFrameLength = this.tooLongFrameLength;
             this.tooLongFrameLength = 0;
             discardingTooLongFrame = false;
-            if (!failFast ||
-                failFast && firstDetectionOfTooLongFrame) {
+            if (!failFast || firstDetectionOfTooLongFrame) {
                 fail(tooLongFrameLength);
             }
         } else {