Update TestMappings.json

Author: maddieclayton

TestMappings.json

@@ -58,9 +58,6 @@
     ".\\src\\ResourceManager\\DataFactories\\Commands.DataFactoryV2.Test\\bin\\Debug\\Microsoft.Azure.Commands.DataFactoryV2.Test.dll",
     ".\\src\\ResourceManager\\StreamAnalytics\\Commands.StreamAnalytics.Test\\bin\\Debug\\Microsoft.Azure.Commands.StreamAnalytics.Test.dll"
   ],
-  "src/ResourceManager/DataFactoryV2/": [
-    ".\\src\\ResourceManager\\DataFactoryV2\\Commands.DataFactoryV2.Test\\bin\\Debug\\Microsoft.Azure.Commands.DataFactoryV2.Test.dll"
-  ],
   "src/ResourceManager/DataLakeAnalytics/": [
     ".\\src\\ResourceManager\\DataLakeAnalytics\\Commands.DataLakeAnalytics.Test\\bin\\Debug\\Microsoft.Azure.Commands.DataLakeAnalytics.Test.dll"
   ],