removed backup files for macos nib directory

MacOSX/SDLMacOSXMain~.nib/classes.nib

@@ -1,34 +0,0 @@
-{
-    IBClasses = (
-        {CLASS = FirstResponder; LANGUAGE = ObjC; SUPERCLASS = NSObject; }, 
-        {
-            ACTIONS = {
-                installCampaignsAskAgain = id; 
-                installCampaignsNever = id; 
-                installCampaignsNow = id; 
-                installCampaignsOverwrite = id; 
-                installUserCampaigns = id; 
-                installUserCampaignsSkip = id; 
-                installUserOverwrite = id; 
-                launchConsole = id; 
-                launchEditor = id; 
-                prefs = id; 
-                revealDataFolder = id; 
-                revealFontsFolder = id; 
-                revealImagesFolder = id; 
-                revealMapsFolder = id; 
-                revealMusicFolder = id; 
-                revealPrefsFolder = id; 
-                revealSaveFolder = id; 
-                revealSoundsFolder = id; 
-                webDownloads = id; 
-                webForum = id; 
-                webMainSite = id; 
-            }; 
-            CLASS = SDLMain; 
-            LANGUAGE = ObjC; 
-            SUPERCLASS = NSObject; 
-        }
-    ); 
-    IBVersion = 1; 
-}

MacOSX/SDLMacOSXMain~.nib/info.nib

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>IBDocumentLocation</key>
-	<string>131 600 356 240 0 0 1280 1002 </string>
-	<key>IBEditorPositions</key>
-	<dict>
-		<key>29</key>
-		<string>93 906 373 44 0 0 1280 1002 </string>
-	</dict>
-	<key>IBFramework Version</key>
-	<string>364.0</string>
-	<key>IBOpenObjects</key>
-	<array>
-		<integer>29</integer>
-	</array>
-	<key>IBSystem Version</key>
-	<string>7U16</string>
-</dict>
-</plist>