Revert "PLT-2183 Slash command auto-complete"

webapp/utils/async_client.jsx

@@ -781,12 +781,12 @@ export function savePreferences(preferences, success, error) {
     );
 }
 
-export function getSuggestedCommands(command, channelId, suggestionId, component) {
-    client.listCommands({command: command, channelId: channelId},
+export function getSuggestedCommands(command, suggestionId, component) {
+    client.listCommands(
         (data) => {
             var matches = [];
             data.forEach((cmd) => {
-                if (('/' + cmd.trigger).indexOf(command) === 0 || cmd.external_management) {
+                if (('/' + cmd.trigger).indexOf(command) === 0) {
                     let s = '/' + cmd.trigger;
                     let hint = '';
                     if (cmd.auto_complete_hint && cmd.auto_complete_hint.length !== 0) {

webapp/utils/client.jsx

@@ -1031,13 +1031,12 @@ export function regenCommandToken(data, success, error) {
     });
 }
 
-export function listCommands(data, success, error) {
+export function listCommands(success, error) {
     $.ajax({
         url: '/api/v1/commands/list',
         dataType: 'json',
         contentType: 'application/json',
-        type: 'POST',
-        data: JSON.stringify(data),
+        type: 'GET',
         success,
         error: function onError(xhr, status, err) {
             var e = handleError('listCommands', xhr, status, err);

webapp/utils/constants.jsx

@@ -595,10 +595,6 @@ export default {
         EMBED_TOGGLE: {
             label: 'embed_toggle',
             description: 'Show toggle for all embed previews'
-        },
-        SLASHCMD_AUTOCMP: {
-            label: 'slashCmd_autocmp',
-            description: 'Enable external application to offer slash command autocomplete'
         }
     },
     OVERLAY_TIME_DELAY: 400,