Adapted build.properties after folder deletion.

test-plugins/org.yakindu.sct.refactoring.tests/build.properties

@@ -2,6 +2,4 @@ source.. = src/
 output.. = bin/
 bin.includes = META-INF/,\
                .,\
-               testmodels/,\
                bin/
-src.includes = testmodels/