Remove cc.ModuleContext.module()

cc.ModuleContext.module() returns a *cc.Module, and is left over from
when the cc package tried to use inheritance.  Remove it and the last
few users.

Change-Id: I9b42ca59689c1b0ada7980fbec923747ed3a53d3

android/module.go

@@ -23,7 +23,6 @@ import (
 	"android/soong/glob"
 
 	"github.com/google/blueprint"
-	"github.com/google/blueprint/proptools"
 )
 
 var (
@@ -90,7 +89,6 @@ type Module interface {
 	GenerateAndroidBuildActions(ModuleContext)
 
 	base() *ModuleBase
-	Disable()
 	Enabled() bool
 	Target() Target
 	InstallInData() bool
@@ -294,10 +292,6 @@ func (a *ModuleBase) DeviceSupported() bool {
 			a.hostAndDeviceProperties.Device_supported
 }
 
-func (a *ModuleBase) Disable() {
-	a.commonProperties.Enabled = proptools.BoolPtr(false)
-}
-
 func (a *ModuleBase) Enabled() bool {
 	if a.commonProperties.Enabled == nil {
 		return a.Os().Class != HostCross