Otherwise SDK build will fail because this target puts artifacts to
privileged app dir, which is not expected for samples in the SDK
build.
You can still build MultiClientInputMethod on command line by
explicitly specifying this in the build target.
Bug: 115784148
Test: locally verified as follows:
lunch sdk_phone_armv7-userdebug
make -j PRODUCT-sdk_phone_armv7-sdk
Change-Id: I09282fa39d13f8078881a3b215cad7d3c0e81486
7bdd3d35c0