Remove --socket-path CLI argument

src/main-process/atom-application.js

@@ -1390,7 +1390,6 @@ class AtomApplication extends EventEmitter {
     const args = []
     if (this.safeMode) args.push('--safe')
     if (this.logFile != null) args.push(`--log-file=${this.logFile}`)
-    if (this.socketPath != null) args.push(`--socket-path=${this.socketPath}`)
     if (this.userDataDir != null) args.push(`--user-data-dir=${this.userDataDir}`)
     if (this.devMode) {
       args.push('--dev')

src/main-process/parse-command-line.js

@@ -58,7 +58,6 @@ module.exports = function parseCommandLine (processArgs) {
   options.alias('v', 'version').boolean('v').describe('v', 'Print the version information.')
   options.alias('w', 'wait').boolean('w').describe('w', 'Wait for window to be closed before returning.')
   options.alias('a', 'add').boolean('a').describe('add', 'Open path as a new project in last used window.')
-  options.string('socket-path')
   options.string('user-data-dir')
   options.boolean('clear-window-state').describe('clear-window-state', 'Delete all Atom environment state.')
   options.boolean('enable-electron-logging').describe('enable-electron-logging', 'Enable low-level logging messages from Electron.')
@@ -121,7 +120,6 @@ module.exports = function parseCommandLine (processArgs) {
   }
 
   const logFile = args['log-file']
-  const socketPath = args['socket-path']
   const userDataDir = args['user-data-dir']
   const profileStartup = args['profile-startup']
   const clearWindowState = args['clear-window-state']
@@ -158,7 +156,6 @@ module.exports = function parseCommandLine (processArgs) {
     safeMode,
     newWindow,
     logFile,
-    socketPath,
     userDataDir,
     profileStartup,
     timeout,