diff --git a/packages/core/src/CommandManager.ts b/packages/core/src/CommandManager.ts
index 2dcefe0d..b207cef1 100644
--- a/packages/core/src/CommandManager.ts
+++ b/packages/core/src/CommandManager.ts
@@ -7,7 +7,6 @@ import {
   RawCommands,
   CommandProps,
 } from './types'
-import getAllMethodNames from './utilities/getAllMethodNames'
 
 export default class CommandManager {
 
@@ -15,12 +14,9 @@ export default class CommandManager {
 
   commands: RawCommands
 
-  methodNames: string[] = []
-
   constructor(editor: Editor, commands: RawCommands) {
     this.editor = editor
     this.commands = commands
-    this.methodNames = getAllMethodNames(this.editor)
   }
 
   public createCommands(): SingleCommands {
diff --git a/packages/core/src/utilities/getAllMethodNames.ts b/packages/core/src/utilities/getAllMethodNames.ts
deleted file mode 100644
index 62081b6d..00000000
--- a/packages/core/src/utilities/getAllMethodNames.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-export default function getAllMethodNames(obj: Object): string[] {
-  return Reflect.ownKeys(Reflect.getPrototypeOf(obj))
-    .map(name => name.toString())
-}