Partly revert "Override MessageEventTarget's events' this-parameter type (microsoft#1882)"

This partly reverts commit 61e18df.

Author: saschanaz

inputfiles/overridingTypes.jsonc

@@ -2526,7 +2526,6 @@
                 ]
             },
             "Worker": {
-                "overrideImplements": ["AbstractWorker", "MessageEventTarget<Worker>"],
                 "methods": {
                     "method": {
                         "postMessage": {
@@ -2620,7 +2619,6 @@
                 }
             },
             "MessagePort": {
-                "overrideImplements": ["MessageEventTarget<MessagePort>"],
                 "methods": {
                     "method": {
                         "postMessage": {
@@ -2669,7 +2667,6 @@
                 }
             },
             "DedicatedWorkerGlobalScope": {
-                "overrideImplements": ["AnimationFrameProvider", "MessageEventTarget<DedicatedWorkerGlobalScope>"],
                 "methods": {
                     "method": {
                         "postMessage": {

src/build/emitter.ts

@@ -1227,9 +1227,10 @@ export function emitWebIdl(
     );
 
     const finalExtends = [i.extends || "Object"]
-      .concat(i.overrideImplements ?? getImplementList(i.name))
+      .concat(getImplementList(i.name))
       .filter((i) => i !== "Object")
       .map(processIName);
+
     if (finalExtends.length) {
       printer.print(` extends ${assertUnique(finalExtends).join(", ")}`);
     }

src/build/types.d.ts

@@ -169,7 +169,6 @@ export interface Interface {
   };
   constructor?: Constructor;
   implements?: string[];
-  overrideImplements?: string[];
   anonymousMethods?: {
     method: AnonymousMethod[];
   };