remove unused endpoint

Signed-off-by: sowjanyakch <sowjanya.kch@gmail.com>

app/src/main/java/com/nextcloud/talk/api/NcApi.java

@@ -125,13 +125,6 @@ public interface NcApi {
         Server URL is: baseUrl + ocsApiVersion + spreedApiVersion + /room/roomToken
      */
 
-    @FormUrlEncoded
-    @PUT
-    Observable<GenericOverall> renameRoom(@Header("Authorization") String authorization,
-                                          @Url String url,
-                                          @Field("roomName") String roomName);
-
-
     @FormUrlEncoded
     @PUT
     Observable<GenericOverall> setConversationDescription(@Header("Authorization") String authorization,

app/src/main/java/com/nextcloud/talk/conversation/RenameConversationDialogFragment.kt

@@ -184,6 +184,7 @@ class RenameConversationDialogFragment : DialogFragment() {
         }
     }
 
+    @SuppressLint("StringFormatInvalid")
     private fun handleSuccess() {
         eventBus.post(ConversationsListFetchDataEvent())