[build] Don't build the Android* projects.

The Android* projects are somewhat vestigial, in that
Xamarin.Android 6.1's Mono.Andriod.dll now uses Java.Interop.dll, so
the need for "intra-Java.Interop Xamarin.Android support" is gone.
(That's also the purpose of the XAIntegrationDebug and
XAIntegrationRelease configurations).

Additionally, we don't want to require Xamarin.Android to be installed
on Jenkins. :-)

Keep the projects, but remove them from the Debug and Release
configurations so that they won't be built.

Author: jonpryor

Java.Interop.sln

@@ -174,11 +174,9 @@ Global
 		{5887B410-D448-4257-A46B-EAC03C80BE93}.Release|x86.ActiveCfg = Release|Any CPU
 		{5887B410-D448-4257-A46B-EAC03C80BE93}.Release|x86.Build.0 = Release|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Debug|x86.Build.0 = Debug|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Release|Any CPU.Build.0 = Release|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Release|x86.ActiveCfg = Release|Any CPU
 		{5FBF138D-1119-4C29-99E1-E928B5209D06}.Release|x86.Build.0 = Release|Any CPU
 		{6410DA0F-5E14-4FC0-9AEE-F4C542C96C7A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
@@ -298,11 +296,9 @@ Global
 		{BB0AB9F7-0979-41A7-B7A9-877260655F94}.Release|x86.ActiveCfg = Release|Any CPU
 		{BB0AB9F7-0979-41A7-B7A9-877260655F94}.Release|x86.Build.0 = Release|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Debug|x86.Build.0 = Debug|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Release|Any CPU.Build.0 = Release|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Release|x86.ActiveCfg = Release|Any CPU
 		{C5176170-4025-4A87-B143-11DC64F9BDD1}.Release|x86.Build.0 = Release|Any CPU
 		{C9FA4492-DEB0-4932-A6B8-E2C4E0581692}.Debug|Any CPU.ActiveCfg = Debug|Any CPU