Tests: Stop testing against core 1.10.1 on testswarm

Fixes #12745

(cherry picked from commit c2224bf)

Author: arschmitz

build/tasks/testswarm.js

@@ -4,7 +4,7 @@ module.exports = function( grunt ) {
 
 var versions = {
 		"git": "git",
-		"1.10": "1.10.0 1.10.1 1.10.2",
+		"1.10": "1.10.0 1.10.2",
 		"1.9": "1.9.0 1.9.1",
 		"1.8": "1.8.0 1.8.1 1.8.2 1.8.3",
 		"1.7": "1.7.0 1.7.1 1.7.2",