host_exerciser: fix buffer comparison in interrupt test mode (#3131)

Buffer comparison varies by FPGA configuration. Stop calling direct memory
comparison in interrupt test mode. The caller of he_interrupt() already does
the proper test.

Signed-off-by: Michael Adler <michael.adler@intel.com>

samples/host_exerciser/host_exerciser_cmd.h

@@ -198,8 +198,6 @@ class host_exerciser_cmd : public test_command
     {
         try {
             host_exe_->interrupt_wait(ev, 10000);
-            if (he_lpbk_cfg_.TestMode == HOST_EXEMODE_LPBK1)
-                host_exe_->compare(source_, destination_);
         }
         catch (std::exception &ex) {
             std::cout << "Exception: " << ex.what() << std::endl;