Remove SkMovie and giflib

DEPS

 use_relative_paths = True
 
 # Dependencies on outside packages.
 #
 deps = {
   "buildtools":  "https://chromium.googlesource.com/chromium/buildtools.git@5fd66957f08bb752dca714a591c84587c9d70762",
 
   "common": "https://skia.googlesource.com/common.git@9737551d7a52c3db3262db5856e6bcd62c462b92",
 
   # There is some duplication here that might be worth cleaning up:
   #   - can use use our existing t_p/e/libjpeg instead of pulling it for Android?
 
   "third_party/externals/angle2"  : "https://chromium.googlesource.com/angle/angle.git@d445357315299e30c18c756f657ff928653128c2",
   "third_party/externals/freetype": "https://skia.googlesource.com/third_party/freetype2.git@4d3f7ca8cedbddad40b9e93a82926618e3fb4265",
   "third_party/externals/gyp"     : "https://chromium.googlesource.com/external/gyp.git@87ac4d0e63fc7dd8152a350327fea8dcf031bf56",
   "third_party/externals/harfbuzz": "https://skia.googlesource.com/third_party/harfbuzz.git@1.3.0",
   "third_party/externals/jsoncpp" : "https://chromium.googlesource.com/external/github.com/open-source-parsers/jsoncpp.git@1.0.0",
   "third_party/externals/libwebp" : "https://chromium.googlesource.com/webm/libwebp.git@v0.5.0",
   "third_party/externals/zlib"    : "https://chromium.googlesource.com/chromium/src/third_party/zlib@4576304a4b9835aa8646c9735b079e1d96858633",
-  "third_party/externals/giflib"  : "https://android.googlesource.com/platform/external/giflib.git@ab10e256df4f684260ca239905b1cec727181f6c",
 
   "third_party/externals/dng_sdk" : "https://android.googlesource.com/platform/external/dng_sdk.git@96443b262250c390b0caefbf3eed8463ba35ecae",
   "third_party/externals/piex"    : "https://android.googlesource.com/platform/external/piex.git@be908191d0a6883a95333bdc0bca749c9b830969",
 
   "third_party/externals/libjpeg-turbo"             : "https://skia.googlesource.com/third_party/libjpeg-turbo.git@debddedc75850bcdeb8a57258572f48b802a4bb3",
   # libjpeg-turbo depends on yasm to compile .asm files
   "third_party/externals/yasm/source/patched-yasm/" : "https://chromium.googlesource.com/chromium/deps/yasm/patched-yasm.git@4671120cd8558ce62ee8672ebf3eb6f5216f909b",
   "third_party/externals/yasm/binaries"             : "https://chromium.googlesource.com/chromium/deps/yasm/binaries.git@52f9b3f4b0aa06da24ef8b123058bb61ee468881",
 
   "third_party/externals/expat" : "https://android.googlesource.com/platform/external/expat.git@android-6.0.1_r55",
 
 
   # The line below is needed for compiling SkV8Example. Do not delete.
   #"third_party/externals/v8": "https://chromium.googlesource.com/v8/v8.git@5f1ae66d5634e43563b2d25ea652dfb94c31a3b4",
 
   # sfntly is used by the PDF backend for font subsetting
   "third_party/externals/sfntly" : "https://chromium.googlesource.com/external/github.com/googlei18n/sfntly.git@b18b09b6114b9b7fe6fc2f96d8b15e8a72f66916",
   # ICU is needed for sfntly.
   "third_party/externals/icu" : "https://chromium.googlesource.com/chromium/deps/icu.git@ec9c1133693148470ffe2e5e53576998e3650c1d",
 
   # sdl will be needed for native windows
   "third_party/externals/sdl" : "https://skia.googlesource.com/third_party/sdl@9b526d28cb2d7f0ccff0613c94bb52abc8f53b6f",
 
   # microhttpd for skiaserve
   "third_party/externals/microhttpd" : "https://android.googlesource.com/platform/external/libmicrohttpd@748945ec6f1c67b7efc934ab0808e1d32f2fb98d",
 }
 
 recursedeps = [ "common" ]