Revert "Remove all instruments at test teardown."

This reverts commit bedf83d.

Author: pablorcum

tests/commonSetupTests.m

@@ -65,7 +65,6 @@ function rebootTarget(testCase)
         function clearBossdeviceObj(testCase)
             if ~isempty(testCase.bd) && testCase.bd.isConnected
                 testCase.bd.stop;
-                testCase.bd.removeAllInstruments;
             end
         end
     end