Remove watch notifications from SettingsStore

It slows things down a bit, and in practice is more unlikely to be a problem than a savior.

src/settings/SettingsStore.js

@@ -148,7 +148,6 @@ export default class SettingsStore {
             callbackFn(originalSettingName, changedInRoomId, atLevel, newValAtLevel, newValue);
         };
 
-        console.log(`Starting watcher for ${settingName}@${roomId || '<null room>'} as ID ${watcherId}`);
         SettingsStore._watchers[watcherId] = localizedCallback;
         defaultWatchManager.watchSetting(settingName, roomId, localizedCallback);
 
@@ -167,7 +166,6 @@ export default class SettingsStore {
             return;
         }
 
-        console.log(`Ending watcher ID ${watcherReference}`);
         defaultWatchManager.unwatchSetting(SettingsStore._watchers[watcherReference]);
         delete SettingsStore._watchers[watcherReference];
     }