rm hack around cglib bug & update to version that has the fix.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=263539023

Author: sameb

core/src/com/google/inject/internal/ProviderMethod.java

@@ -64,10 +64,7 @@ static <T> ProviderMethod<T> create(
       Annotation annotation) {
     int modifiers = method.getModifiers();
     /*if[AOP]*/
-    if (!skipFastClassGeneration
-        // Protect against a bug in cglib where static interface methods were invoked with
-        // invokeinterface and not invokestatic. See https://github.com/cglib/cglib/pull/153
-        && instance != null) {
+    if (!skipFastClassGeneration) {
       try {
         net.sf.cglib.reflect.FastClass fc = BytecodeGen.newFastClassForMember(method);
         if (fc != null) {

pom.xml

@@ -159,7 +159,7 @@ See the Apache License Version 2.0 for the specific language governing permissio
       <dependency>
         <groupId>cglib</groupId>
         <artifactId>cglib</artifactId>
-        <version>3.2.12</version>
+        <version>3.3.0</version>
       </dependency>
       <dependency>
         <groupId>junit</groupId>