[tools] Remove MB configs for old clusterfuzz builder names

R=machenbach@chromium.org

No-Try: true
Bug: chromium:793687
Change-Id: I6d2988a0a2644de806e7b273ed5ff9213fceda5d
Reviewed-on: https://chromium-review.googlesource.com/1013708
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52639}

infra/mb/mb_config.pyl

@@ -138,42 +138,6 @@
       'V8 Clusterfuzz Linux64 TSAN - release builder': 'release_x64_tsan',
       'V8 Clusterfuzz Linux64 UBSanVptr - release builder':
           'release_x64_ubsan_vptr_recover_edge',
-      # DO NOT MAKE CHANGES to any builder configs below. Instead modify
-      # corresponding builders above.
-      # TODO(sergiyb): Remove after renaming all clusterfuzz builders on master
-      # side.
-      'V8 Win64 ASAN - release builder':
-        'release_x64_asan_no_lsan_verify_heap',
-      # Note this is called a debug builder, but it uses a release build
-      # configuration with dchecks (which enables DEBUG in V8), since win-asan
-      # debug is not supported.
-      'V8 Win64 ASAN - debug builder':
-        'release_x64_asan_no_lsan_verify_heap_dchecks',
-      'V8 Mac64 ASAN - release builder':
-          'release_x64_asan_no_lsan_edge_verify_heap',
-      'V8 Mac64 ASAN - debug builder':
-          'debug_x64_asan_no_lsan_static_edge',
-      'V8 Linux64 - release builder': 'release_x64_correctness_fuzzer',
-      'V8 Linux64 - debug builder': 'debug_x64',
-      'V8 Linux64 - nosnap release builder': 'release_x64_no_snap',
-      'V8 Linux64 - nosnap debug builder': 'debug_x64_no_snap',
-      'V8 Linux64 ASAN no inline - release builder':
-          'release_x64_asan_symbolized_edge_verify_heap',
-      'V8 Linux64 ASAN - debug builder': 'debug_x64_asan_edge',
-      'V8 Linux64 ASAN arm64 - debug builder':
-          'debug_simulate_arm64_asan_edge',
-      'V8 Linux ASAN arm - debug builder':
-          'debug_simulate_arm_asan_edge',
-      'V8 Linux ASAN mipsel - debug builder':
-          'debug_simulate_mipsel_asan_edge',
-      'V8 Linux64 CFI - release builder': 'release_x64_cfi_clusterfuzz',
-      'V8 Linux MSAN no origins':
-          'release_simulate_arm64_msan_no_origins_edge',
-      'V8 Linux MSAN chained origins':
-          'release_simulate_arm64_msan_edge',
-      'V8 Linux64 TSAN - release builder': 'release_x64_tsan',
-      'V8 Linux64 UBSanVptr - release builder':
-          'release_x64_ubsan_vptr_recover_edge',
     },
     'client.v8.ports': {
       # Arm.