Remove check for platform_tools/android/third_party/externals.

platform_tools/android/bin/android_setup.sh

 #!/bin/bash
 ###############################################################################
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 ###############################################################################
 #
 # android_setup.sh: Sets environment variables used by other Android scripts.
 
@@ skipping 57 matching lines @@
      echo "No ANDROID_SDK_ROOT set and can't auto detect it from location of android binary."
      exit 1
   fi
 fi
 
 if [ -z "$ANDROID_HOME" ]; then
   echo "ANDROID_HOME not set so we are setting it to a default value of ANDROID_SDK_ROOT"
   exportVar ANDROID_HOME $ANDROID_SDK_ROOT
 fi
 
-# check to see that gclient sync ran successfully
-THIRD_PARTY_EXTERNAL_DIR=${SCRIPT_DIR}/../third_party/externals
-if [ ! -d "$THIRD_PARTY_EXTERNAL_DIR" ]; then
-        echo ""
-        echo "ERROR: Unable to find the required third_party dependencies needed to build."
-        echo "       To fix this add the following line to your .gclient file and run 'gclient sync'"
-        echo "        target_os = ['android']"
-        echo ""
-        exit 1;
-fi
-
 # Helper function to configure the GYP defines to the appropriate values
 # based on the target device.
 setup_device() {
   DEFINES="OS=android"
   DEFINES="${DEFINES} host_os=$(uname -s | sed -e 's/Linux/linux/;s/Darwin/mac/')"
   DEFINES="${DEFINES} skia_os=android"
   DEFINES="${DEFINES} android_base=$(absPath ${SCRIPT_DIR}/..)"
   if [[ "$GYP_DEFINES" != *skia_shared_lib=* ]]; then
       DEFINES="${DEFINES} skia_shared_lib=1"
   fi
@@ skipping 164 matching lines @@
       adb_push_if_needed $HOST_SRC $ANDROID_DST
     else
       echo -n "$ANDROID_DST "
       $ADB $DEVICE_SERIAL shell mkdir -p "$(dirname "$ANDROID_DST")"
       $ADB $DEVICE_SERIAL push $HOST_SRC $ANDROID_DST
     fi
   fi
 }
 
 setup_device "${DEVICE_ID}"