Automated rollback of commit dfd7784fa1.

PiperOrigin-RevId: 672639698

src/google/protobuf/compiler/java/lite/enum_field.cc

@@ -111,8 +111,7 @@ void SetEnumVariables(
 
   // We use `x.getClass()` as a null check because it generates less bytecode
   // than an `if (x == null) { throw ... }` statement.
-  (*variables)["null_check"] =
-      "java.lang.Class<?> unusedValueClass = value.getClass();\n";
+  (*variables)["null_check"] = "value.getClass();\n";
   // Calls to Annotate() use variable ranges to know which text to annotate.
   (*variables)["{"] = "";
   (*variables)["}"] = "";

src/google/protobuf/compiler/java/lite/message_field.cc

@@ -88,8 +88,7 @@ void SetMessageVariables(
 
   // We use `x.getClass()` as a null check because it generates less bytecode
   // than an `if (x == null) { throw ... }` statement.
-  (*variables)["null_check"] =
-      "java.lang.Class<?> unusedValueClass = value.getClass();\n";
+  (*variables)["null_check"] = "value.getClass();\n";
   // Annotations often use { and } to determine ranges.
   (*variables)["{"] = "";
   (*variables)["}"] = "";