remove misleading variable from Android.mk
remove misleading variable from Android.mk

* We can't build static host executables yet.

Change-Id: I600611f2b512e74d24604ddfe053b4fc77d927df

CyanogenMod/android_external_heimdall,byterom/android_external_heimdall,CyanogenMod/android_external_heimdall,CyanogenMod/android_external_heimdall,byterom/android_external_heimdall,byterom/android_external_heimdall