Remove anything related to using mkbundle, since we're not using mkbundle anymore. (#2132)

Make.config

@@ -239,7 +239,6 @@ SYSTEM_CSC=$(MONO_PREFIX)/bin/csc /nologo
 SYSTEM_SN=$(MONO_PREFIX)/bin/sn
 SYSTEM_MONO=$(MONO_PREFIX)/bin/mono
 SYSTEM_MONO32=$(MONO_PREFIX)/bin/mono32
-SYSTEM_MKBUNDLE=$(MONO_PREFIX)/bin/mkbundle
 SYSTEM_XBUILD=$(MONO_PREFIX)/bin/xbuild
 SYSTEM_RESGEN=$(MONO_PREFIX)/bin/resgen
 

mk/quiet.mk

@@ -10,7 +10,6 @@ Q_GMCS= $(if $(V),,@echo "GMCS     $(@F)";)
 Q_DMCS= $(if $(V),,@echo "DMCS     $(@F)";)
 Q_SMCS= $(if $(V),,@echo "SMCS     $(@F)";)
 Q_PMCS= $(if $(V),,@echo "PMCS     $(@F)";)
-Q_MKBUNDLE= $(if $(V),,@echo "MKBUNDLE $(@F)";)
 Q_AS=   $(if $(V),,@echo "AS       $(@F)";)
 Q_CC=   $(if $(V),,@echo "CC       $(@F)";)
 QT_CC=  $(if $(V),,@echo "CC       $$(@F)";)

tools/mmp/resolver.cs

@@ -31,10 +31,8 @@ using Mono.Cecil;
 
 namespace Xamarin.Bundler {
 	public partial class MonoMacResolver : IAssemblyResolver {
-#if !MKBUNDLE
 		public static bool IsClassic { get { return Driver.IsClassic; } }
 		public static bool IsUnified { get { return Driver.IsUnified; } }
-#endif
 
 		public string FrameworkDirectory { get; set; }
 		public string RootDirectory { get; set; }