test: remove server-unit from TravisCI

This commit removes the server-unit tests from Travis CI testing.  It is
handled instead by Appveyor.

Closes Third-Culture-Software#887.

sh/test.sh

@@ -27,9 +27,9 @@ startfold "Running Integration Tests..." "test-integration";
 endfold "test-integration" ;
 
 #run server-unit test
-startfold "Running server Unit Tests ......" "server-unit"
-./node_modules/.bin/mocha --recursive --exit test/server-unit
-endfold "server-unit" ;
+# startfold "Running server Unit Tests ......" "server-unit"
+# ./node_modules/.bin/mocha --recursive --exit test/server-unit
+# endfold "server-unit" ;
 
 # run end to end tests
 startfold "Running Client End to End Tests..." "test-end-to-end";