Fix clearAllSlot (#1020)

### Fix clearAllSlot

### Summarize your change.

Add missing `}` for `if(!_skipConfirmations)`.

### Describe the reason for the change.
While resolving the conflict between #1017 and #1016, the indentation of
the code got changed and it resulted in a missing closing brace. Because
of this issue, the following error is displayed in the console:
`annotate_mode.mu, line 2210, char 41: method declaration not allowed in
this context.
Assertion failed: ((nparams == 0 && params == 0) || (nparams != 0 &&
params != 0)), function init, file Function.cpp, line 69.`

Signed-off-by: Éloïse Brosseau <[email protected]>

Author: eloisebrosseau

src/plugins/rv-packages/annotate/annotate_mode.mu

@@ -2074,15 +2074,14 @@ class: AnnotateMinorMode : MinorMode
         {
             let answer = alertPanel(true, InfoAlert, "Clear all annotations from the current timeline?", nil, "OK", "Cancel", nil);
 
-        if (answer != 0)
-        {
-            return;
-        }
-        else
-        {
-            clearAllPaint();
+            if (answer != 0)
+            {
+                return;
+            }
         }
 
+        clearAllPaint();
+
         updateFrameDependentState();
         redraw();
     }