Use Module.GetProperties() instead of ModuleBase.generalProperties

ModuleBase.generalProperties served the pupose of being a subset
of ModuleBase.customizableProperties. But now with the removal of
the latter, the former is simply a redirection to Module.GetProperties()

Bug: 206961391
Test: m nothing and diff the ninja files
Change-Id: I6dd8b7ba74eb5e7ffb61029b0f9129eec2ccfdaf

android/defaults.go

@@ -96,8 +96,6 @@ func InitDefaultableModule(module DefaultableModule) {
 	module.setProperties(module.GetProperties(), module.base().variableProperties)
 
 	module.AddProperties(module.defaults())
-
-	module.base().generalProperties = module.GetProperties()
 }
 
 // A restricted subset of context methods, similar to LoadHookContext.