chore: Remove unused property in config

Author: tjtanjin

src/constants/DefaultPluginConfig.ts

@@ -2,11 +2,5 @@
  * Default values for plugin config.
  */
 export const DefaultPluginConfig = {
-    autoConfig: true,
-    promptColor: {
-        "info": "blue",
-        "warning": "yellow",
-        "error": "red",
-        "success": "green"
-    }
+    autoConfig: true
 }

src/types/PluginConfig.ts

@@ -3,7 +3,4 @@
  */
 export type PluginConfig = {
     autoConfig?: boolean; // defaults to true, helps user to enable the required events
-    promptColor?: {
-        [key: string]: string;
-    };
 }