refactor: remove Extender and google-cloud

This removes the ability to extend the logger with google-cloud.

It's not being used and causing issues in other projects (i.e.
code-server) so we decided to remove it entirely.

Author: jsjoeio

package.json

@@ -11,11 +11,7 @@
   "types": "out/index.d.ts",
   "author": "Coder",
   "license": "MIT",
-  "peerDependencies": {
-    "@google-cloud/logging": "^9.2.1"
-  },
   "devDependencies": {
-    "@google-cloud/logging": "^9.2.1",
     "@types/mocha": "^8.2.2",
     "@types/node": "^12.6.8",
     "@typescript-eslint/eslint-plugin": "^4.22.0",

src/extender.ts

@@ -72,11 +72,6 @@ export type Message = {
   tagColor: string
 }
 
-/**
- * An extra function to call with a message.
- */
-export type Extender = (msg: Message & { section?: string }) => void
-
 /**
  * Represents a message formatted for use with something like `console.log`.
  */
@@ -308,7 +303,6 @@ export class Logger {
     private _formatter: Formatter,
     private readonly name?: string,
     private readonly defaultFields?: FieldArray,
-    private readonly extenders: Extender[] = [],
   ) {
     if (name) {
       this.nameColor = this.hashStringToColor(name)
@@ -345,10 +339,6 @@ export class Logger {
     this.muted = true
   }
 
-  public extend(extender: Extender): void {
-    this.extenders.push(extender)
-  }
-
   public info(fn: LogCallback): void
   public info(message: string, ...fields: FieldArray): void
   public info(message: LogCallback | string, ...fields: FieldArray): void {
@@ -409,7 +399,7 @@ export class Logger {
    * Each name is deterministically generated a color.
    */
   public named(name: string, ...fields: FieldArray): Logger {
-    const l = new Logger(this._formatter, name, fields, this.extenders)
+    const l = new Logger(this._formatter, name, fields)
     if (this.muted) {
       l.mute()
     }
@@ -462,13 +452,6 @@ export class Logger {
     }
 
     this._formatter.write(message.level)
-
-    this.extenders.forEach((extender) => {
-      extender({
-        section: this.name,
-        ...message,
-      })
-    })
   }
 
   /**