Remove auto prefix plugin name (#2757)

* Remove auto prefix plugin name

* Remove unused function

* Cleanup

cli/index.js

@@ -23,13 +23,6 @@ const assertPluginName = pluginName => {
   }
 };
 
-const getPluginName = arg => {
-  if (arg.indexOf(PLUGIN_PREFIX) !== 0) {
-    return `${PLUGIN_PREFIX}${arg}`;
-  }
-  return arg;
-};
-
 const checkConfig = () => {
   if (api.exists()) {
     return true;
@@ -42,21 +35,21 @@ const checkConfig = () => {
 
 args.command(['i', 'install'], 'Install a plugin', (name, args_) => {
   checkConfig();
-  assertPluginName(args_[0]);
-  const plugin = getPluginName(args_[0]);
+  const pluginName = args_[0];
+  assertPluginName(pluginName);
   commandPromise = api
-    .install(plugin)
-    .then(() => console.log(chalk.green(`${plugin} installed successfully!`)))
+    .install(pluginName)
+    .then(() => console.log(chalk.green(`${pluginName} installed successfully!`)))
     .catch(err => console.error(chalk.red(err)));
 });
 
 args.command(['u', 'uninstall', 'rm', 'remove'], 'Uninstall a plugin', (name, args_) => {
   checkConfig();
-  assertPluginName(args_[0]);
-  const plugin = getPluginName(args_[0]);
+  const pluginName = args_[0];
+  assertPluginName(pluginName);
   commandPromise = api
-    .uninstall(plugin)
-    .then(() => console.log(chalk.green(`${plugin} uninstalled successfully!`)))
+    .uninstall(pluginName)
+    .then(() => console.log(chalk.green(`${pluginName} uninstalled successfully!`)))
     .catch(err => console.log(chalk.red(err)));
 });
 
@@ -134,9 +127,9 @@ args.command(['lsr', 'list-remote', 'ls-remote'], 'List plugins available on npm
 });
 
 args.command(['d', 'docs', 'h', 'home'], 'Open the npm page of a plugin', (name, args_) => {
-  assertPluginName(args_[0]);
-  const plugin = getPluginName(args_[0]);
-  opn(`http://ghub.io/${plugin}`, {wait: false});
+  const pluginName = args_[0];
+  assertPluginName(pluginName);
+  opn(`http://ghub.io/${pluginName}`, {wait: false});
   process.exit(0);
 });