KVM: selftests: Remove obsolete and incorrect test case metadata

Delete inaccurate descriptions and obsolete metadata for test cases.
It adds zero value, and has a non-zero chance of becoming stale and
misleading in the future. No functional changes intended.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Link: https://lore.kernel.org/r/20230914094803.94661-1-likexu@tencent.comSigned-off-by: Sean Christopherson <seanjc@google.com>

tools/testing/selftests/kvm/include/ucall_common.h

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * tools/testing/selftests/kvm/include/kvm_util.h
- *
  * Copyright (C) 2018, Google LLC.
  */
 #ifndef SELFTEST_KVM_UCALL_COMMON_H

tools/testing/selftests/kvm/lib/x86_64/apic.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * tools/testing/selftests/kvm/lib/x86_64/processor.c
- *
  * Copyright (C) 2021, Google LLC.
  */
 

tools/testing/selftests/kvm/x86_64/hyperv_svm_test.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * KVM_GET/SET_* tests
- *
  * Copyright (C) 2022, Red Hat, Inc.
  *
  * Tests for Hyper-V extensions to SVM.

tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * tools/testing/selftests/kvm/nx_huge_page_test.c
- *
  * Usage: to be run via nx_huge_page_test.sh, which does the necessary
  * environment setup and teardown
  *

tools/testing/selftests/kvm/x86_64/nx_huge_pages_test.sh

@@ -4,7 +4,6 @@
 # Wrapper script which performs setup and cleanup for nx_huge_pages_test.
 # Makes use of root privileges to set up huge pages and KVM module parameters.
 #
-# tools/testing/selftests/kvm/nx_huge_page_test.sh
 # Copyright (C) 2022, Google LLC.
 
 set -e

tools/testing/selftests/kvm/x86_64/tsc_scaling_sync.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * svm_vmcall_test
- *
  * Copyright © 2021 Amazon.com, Inc. or its affiliates.
- *
- * Xen shared_info / pvclock testing
  */
 
 #include "test_util.h"

tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * svm_vmcall_test
- *
  * Copyright © 2021 Amazon.com, Inc. or its affiliates.
- *
- * Xen shared_info / pvclock testing
  */
 
 #include "test_util.h"