Revert "third_party/protobuf: Update to HEAD (83d681ee2c)"

third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java

Index: third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java
diff --git a/third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java b/third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java
index 55e33d21d074562639291c6c37f995f978c02c40..85ce7b24ac8a116f876a0cd274368b40219c2a3a 100644
--- a/third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java
+++ b/third_party/protobuf/java/core/src/main/java/com/google/protobuf/InvalidProtocolBufferException.java
@@ -107,23 +107,11 @@ public class InvalidProtocolBufferException extends IOException {
       "Protocol message end-group tag did not match expected tag.");
   }
 
-  static InvalidWireTypeException invalidWireType() {
-    return new InvalidWireTypeException(
+  static InvalidProtocolBufferException invalidWireType() {
+    return new InvalidProtocolBufferException(
       "Protocol message tag had invalid wire type.");
   }
 
-  /**
-   * Exception indicating that and unexpected wire type was encountered for a field.
-   */
-  @ExperimentalApi
-  public static class InvalidWireTypeException extends InvalidProtocolBufferException {
-    private static final long serialVersionUID = 3283890091615336259L;
-
-    public InvalidWireTypeException(String description) {
-      super(description);
-    }
-  }
-
   static InvalidProtocolBufferException recursionLimitExceeded() {
     return new InvalidProtocolBufferException(
       "Protocol message had too many levels of nesting.  May be malicious.  " +