Removed custom toolbar sizing code since we seem not to need it anymore

MacPass/MPDocumentWindowController.m

@@ -115,6 +115,7 @@ typedef void (^MPPasswordChangedBlock)(BOOL didChangePassword);
   self.toolbar = [[NSToolbar alloc] initWithIdentifier:@"MainWindowToolbar"];
   self.toolbar.autosavesConfiguration = YES;
   self.toolbar.allowsUserCustomization = YES;
+  /* center search in toolbar */
   if (@available(macOS 10.14, *)) {
     self.toolbar.centeredItemIdentifier = MPToolbarItemIdentifierSearch;
   } else {

MacPass/MPToolbarButton.m

@@ -37,25 +37,4 @@
   return self;
 }
 
-- (void)setControlSize:(NSControlSize)controlSize {
-  NSImageRep *rep = [self.image bestRepresentationForRect:NSMakeRect(0, 0, 100, 100) context:nil hints:nil];
-  CGFloat scale = rep.size.width / rep.size.height;
-  switch (controlSize) {
-    case NSControlSizeRegular:
-      self.image.size = NSMakeSize(16 * scale, 16);
-      break;
-      
-    case NSControlSizeSmall:
-      self.image.size = NSMakeSize(14 * scale, 14);
-      break;
-      
-    case NSControlSizeMini:
-      self.image.size = NSMakeSize(8 * scale, 8);
-      
-    default:
-      break;
-  }
-  super.controlSize = controlSize;
-}
-
 @end