Remove deprecated project. Update README.

There was nothing absolutely necessary to bring in to the cmake version from what I can tell.

Xcode/Info-StepMania.plist

@@ -1,59 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>English</string>
-	<key>CFBundleDocumentTypes</key>
-	<array>
-		<dict>
-			<key>CFBundleTypeExtensions</key>
-			<array>
-				<string>smzip</string>
-			</array>
-			<key>CFBundleTypeIconFile</key>
-			<string>smicon.icns</string>
-			<key>CFBundleTypeMIMETypes</key>
-			<array>
-				<string>application/zip</string>
-			</array>
-			<key>CFBundleTypeName</key>
-			<string>SMZip</string>
-			<key>CFBundleTypeRole</key>
-			<string>Editor</string>
-			<key>LSTypeIsPackage</key>
-			<false/>
-			<key>NSPersistentStoreTypeKey</key>
-			<string>Binary</string>
-		</dict>
-	</array>
-	<key>CFBundleExecutable</key>
-	<string>EXECUTABLE_NAME</string>
-	<key>CFBundleGetInfoString</key>
-	<string>PRODUCT_FAMILY_BARE PRODUCT_VER_BARE</string>
-	<key>CFBundleIconFile</key>
-	<string>smicon.icns</string>
-	<key>CFBundleIdentifier</key>
-	<string>com.PRODUCT_ID_BARE</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>PRODUCT_FAMILY_BARE</string>
-	<key>CFBundlePackageType</key>
-	<string>APPL</string>
-	<key>CFBundleShortVersionString</key>
-	<string>PRODUCT_VER_BARE</string>
-	<key>CFBundleSignature</key>
-	<string>Step</string>
-	<key>CFBundleVersion</key>
-	<string>PRODUCT_VER_BARE</string>
-	<key>LSApplicationCategoryType</key>
-	<string>public.app-category.music-games</string>
-	<key>LSMinimumSystemVersion</key>
-	<string>10.6.8</string>
-	<key>NSHumanReadableCopyright</key>
-	<string>Copyright 2001-2015</string>
-	<key>NSPrincipalClass</key>
-	<string>SMApplication</string>
-</dict>
-</plist>

Xcode/README.md

@@ -1,13 +1,17 @@
-
 StepMania Xcode Project
 =======================
 
+There used to be an Xcode project that lived here. However, it is no longer.
 
-Mac OS X 10.6 SDK
+Please use CMake to generate an Xcode project.
+
+
+SDK Selection
 -----------------
 
-StepMania requires Mac OS X 10.6 SDK to build.
-See this [comment](https://github.com/stepmania/stepmania/issues/224#issuecomment-48857894) on how to install 10.6 SDK in Xcode.
+Any Mac OS X SDK that is 10.6 or higher will work. However, the 10.6 SDK is needed to offer full screen support at this time.
+
+Please see this [comment](https://github.com/stepmania/stepmania/issues/224#issuecomment-48857894) on how to install 10.6 SDK in Xcode if this feature is necessary for your setup.
 
 Please note that you must restart Xcode after installing the SDK, in case Xcode is running, for it to detect the new SDKs.