Remove blueprint.Module helper functions

Now that blueprint_go_binary modules are wrapped in a module type
that implements android.Module Soong should never see a blueprint.Module.
Remove the versions of the context methods that allow working with
blueprint.Modules.

Genrules still need VisitDirectDepsAllowDisabled, as they use a hack
that adds dependencies on host tools after the prebuilts mutators have
run, which means they may have a dependency on a disabled prebuilt
and need to manually forward it to the corresponding source module.

Test: all soong tests pass
Flag: EXEMPT refactor
Change-Id: I9147b450269749326e8fe75c5af310bd2d898d8c
diff --git a/java/base.go b/java/base.go
index 129d722..0d05505 100644
--- a/java/base.go
+++ b/java/base.go
@@ -2700,7 +2700,7 @@
 	module := ctx.Module()
 	moduleName := module.Name()
 
-	ctx.VisitDirectDepsIgnoreBlueprint(func(m android.Module) {
+	ctx.VisitDirectDeps(func(m android.Module) {
 		tag := ctx.OtherModuleDependencyTag(m)
 		// This logic mirrors that in (*Module).collectDeps above.  There are several places
 		// where we explicitly return RenameUseExclude, even though it is the default, to