Remove redundant command line option.

build/android/envsetup.sh

Index: build/android/envsetup.sh
diff --git a/build/android/envsetup.sh b/build/android/envsetup.sh
index f94ca65b7b2aff0cec095f86ac27d00ac43a62fb..fb59b23d1ccb003e24292b6f315993c8482a84b7 100755
--- a/build/android/envsetup.sh
+++ b/build/android/envsetup.sh
@@ -6,7 +6,7 @@
 
 # Sets up environment for building Chromium on Android.  It can either be
 # compiled with the Android tree or using the Android SDK/NDK. To build with
-# NDK/SDK: ". build/android/envsetup.sh --sdk".  Environment variable
+# NDK/SDK: ". build/android/envsetup.sh".  Environment variable
 # ANDROID_SDK_BUILD=1 will then be defined and used in the rest of the setup to
 # specifiy build type.
 
@@ -22,7 +22,6 @@ fi
 # Loop over args in case we add more arguments in the future.
 while [ "$1" != "" ]; do
   case $1 in
-    -s | --sdk  ) export ANDROID_SDK_BUILD=1 ; shift ;;

[shashi, 2012/10/15 22:29:20]

Just thought that I can remove the above while loop. 
There is already a check for CHROME_ANDROID_BUILD_WEBVIEW for non sdk build.
I am looking into downstream changes to enable this.
This script will no longer need any options.

[Yaron, 2012/10/15 22:47:01]

Yes, I'd prefer to remove this entirely.

     *  )          shift ; break ;;
   esac
 done
@@ -79,7 +78,7 @@ elif [[ -z "$ANDROID_BUILD_TOP" || \
   echo "  . build/envsetup.sh"
   echo "  lunch"
   echo "Then try this again."
-  echo "Or did you mean NDK/SDK build. Run envsetup.sh with --sdk argument."
+  echo "Or did you mean NDK/SDK build. Run envsetup.sh without any arguments."
   return 1
 elif [[ -n "$CHROME_ANDROID_BUILD_WEBVIEW" ]]; then
   webview_build_init