Remove freetype dependency from core.gyp

Review URL: https://codereview.chromium.org/13975014

git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@8677 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/core.gyp b/core.gyp
index 5f99fd9..cc5cfbd 100644
--- a/core.gyp
+++ b/core.gyp
@@ -75,7 +75,7 @@
             'config/win',
           ],
         }],
-        [ 'skia_os in ("android", "nacl")', {
+        [ 'skia_os == "nacl"', {
           'dependencies': [
             'freetype.gyp:freetype',
           ],