Remove test_SCDclass from expcode tests (no tag for now)

tests/test_SCDclass.m

@@ -6,7 +6,7 @@ classdef test_SCDclass < matlab.unittest.TestCase
     shot = 65668;
   end
   
-  methods(Test,TestTags={'expcodes'})
+  methods(Test)
     function test_load(testCase)
       SCD.load(testCase.expcode);
     end