Fix CoreFoundation standalone build syntax errors

Not sure how these trailing quotes crept in, but the file doesn't parse
unless you remove them.

Author: copumpkin

CoreFoundation/build.py

@@ -13,10 +13,10 @@
 	cf.CFLAGS = '-DDEPLOYMENT_TARGET_MACOSX '
 
 cf.ASFLAGS = " ".join([
-	'-DCF_CHARACTERSET_BITMAP=\\"CharacterSets/CFCharacterSetBitmaps.bitmap\\"','
-        '-DCF_CHARACTERSET_UNICHAR_DB=\\"CharacterSets/CFUniCharPropertyDatabase.data\\"','
-        '-DCF_CHARACTERSET_UNICODE_DATA_B=\\"CharacterSets/CFUnicodeData-B.mapping\\"','
-        '-DCF_CHARACTERSET_UNICODE_DATA_L=\\"CharacterSets/CFUnicodeData-L.mapping\\"','
+	'-DCF_CHARACTERSET_BITMAP=\\"CharacterSets/CFCharacterSetBitmaps.bitmap\\"',
+        '-DCF_CHARACTERSET_UNICHAR_DB=\\"CharacterSets/CFUniCharPropertyDatabase.data\\"',
+        '-DCF_CHARACTERSET_UNICODE_DATA_B=\\"CharacterSets/CFUnicodeData-B.mapping\\"',
+        '-DCF_CHARACTERSET_UNICODE_DATA_L=\\"CharacterSets/CFUnicodeData-L.mapping\\"',
 ])
 
 cf.ROOT_HEADERS_FOLDER_PATH = "${PREFIX}/lib/swift"