The problem was that you can't omit the parameter for -i (the extension for
backup files) with Mac's sed.
Change-Id: I8cc5404d5d99526c160082c357fc38629e08d7d2
remove-exchange-support.sh makes it possible to build the email app without
exchange support.
This script:
- removes all packages under com.android.exchange.
- removes all lines surrounded by EXCHANGE-REMOVE-SECTION-START and
EXCHANGE-REMOVE-SECTION-END
And the resulting source should still build and run fine.
Bug: 2369784