diff --git a/packages/grpc-js/src/events.ts b/packages/grpc-js/src/events.ts
index ad96efd5..976e9b7b 100644
--- a/packages/grpc-js/src/events.ts
+++ b/packages/grpc-js/src/events.ts
@@ -1,13 +1,3 @@
-export interface EmitterAugmentation0<Name extends string|symbol> {
-  addListener(event: Name, listener: () => void): this;
-  emit(event: Name): boolean;
-  on(event: Name, listener: () => void): this;
-  once(event: Name, listener: () => void): this;
-  prependListener(event: Name, listener: () => void): this;
-  prependOnceListener(event: Name, listener: () => void): this;
-  removeListener(event: Name, listener: () => void): this;
-}
-
 export interface EmitterAugmentation1<Name extends string|symbol, Arg> {
   addListener(event: Name, listener: (arg1: Arg) => void): this;
   emit(event: Name, arg1: Arg): boolean;
@@ -17,15 +7,3 @@ export interface EmitterAugmentation1<Name extends string|symbol, Arg> {
   prependOnceListener(event: Name, listener: (arg1: Arg) => void): this;
   removeListener(event: Name, listener: (arg1: Arg) => void): this;
 }
-
-export interface EmitterAugmentation2<Name extends string|symbol, Arg1, Arg2> {
-  addListener(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void): this;
-  emit(event: Name, arg1: Arg1, arg2: Arg2): boolean;
-  on(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void): this;
-  once(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void): this;
-  prependListener(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void):
-      this;
-  prependOnceListener(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void):
-      this;
-  removeListener(event: Name, listener: (arg1: Arg1, arg2: Arg2) => void): this;
-}