Remove TRAVIS environment variable while testing

Author: eatdrinksleepcode

src/GitVersionCore.Tests/ExecuteCoreTests.cs

@@ -131,6 +131,7 @@ string RepositoryScope(ExecuteCore executeCore = null, Action<EmptyRepositoryFix
     {
         // Make sure GitVersion doesn't trigger build server mode when we are running the tests
         Environment.SetEnvironmentVariable("APPVEYOR", null);
+		Environment.SetEnvironmentVariable("TRAVIS", null);
         var infoBuilder = new StringBuilder();
         Action<string> infoLogger = s =>
         {

src/GitVersionExe.Tests/GitVersionHelper.cs

@@ -38,7 +38,8 @@ static ExecutionResults ExecuteIn(ArgumentBuilder arguments)
             {
                 new KeyValuePair<string, string>("TEAMCITY_VERSION", arguments.IsTeamCity ? "8.0.0" : null),
                 new KeyValuePair<string, string>("APPVEYOR", null)
-            };
+				new KeyValuePair<string, string>("TRAVIS", null)
+			};
 
         var exitCode = -1;