Remove comments in service_contexts

Commit b554e59 converted the build rules of contexts to Soong.
Previously, both services_contexts and hwservice_contexts were stripped
of comments. This is useful as a CTS test (testAospServiceContexts)
ensures that the device service_contexts matches AOSP. Restore the
previous behaviour.

Bug: 279384270
Test: m selinux_policy; diff plat_service_contexts; no more comments
(cherry picked from https://android-review.googlesource.com/q/commit:74482f5328484f143ab9a6135a01039a94230336)
Merged-In: Id0245efacf4e4b123f805869d95bacf804ccb915
Change-Id: Id0245efacf4e4b123f805869d95bacf804ccb915

Author: tweksteen

build/soong/selinux_contexts.go

@@ -333,7 +333,7 @@ func fileFactory() android.Module {
 	return m
 }
 
-func (m *selinuxContextsModule) buildHwServiceContexts(ctx android.ModuleContext, inputs android.Paths) android.Path {
+func (m *selinuxContextsModule) buildServiceContexts(ctx android.ModuleContext, inputs android.Paths) android.Path {
 	if m.properties.Remove_comment == nil {
 		m.properties.Remove_comment = proptools.BoolPtr(true)
 	}
@@ -478,7 +478,7 @@ func (m *selinuxContextsModule) buildSeappContexts(ctx android.ModuleContext, in
 
 func hwServiceFactory() android.Module {
 	m := newModule()
-	m.build = m.buildHwServiceContexts
+	m.build = m.buildServiceContexts
 	return m
 }
 
@@ -491,7 +491,7 @@ func propertyFactory() android.Module {
 
 func serviceFactory() android.Module {
 	m := newModule()
-	m.build = m.buildGeneralContexts
+	m.build = m.buildServiceContexts
 	return m
 }