Revert "Set use_vaapi=false in fuzzer builds."

This reverts commit de6e338e.

Reason for revert: Should be fixed by https://crrev.com/819550

Original change's description:
> Set use_vaapi=false in fuzzer builds.
>
> Bug: 1140770
> Change-Id: I0c9877f5cb24bb66c86df3577caee71a9fdca102
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2487742
> Commit-Queue: Oliver Chang <ochang@chromium.org>
> Auto-Submit: Oliver Chang <ochang@chromium.org>
> Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#819249}

TBR=ochang@chromium.org,tikuta@chromium.org

Change-Id: If383a43d03d61b581df2451f133b2d5bfe4b09ab
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1140770
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2491220Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819555}

tools/mb/mb_config.pyl

@@ -2771,8 +2771,7 @@
     },
 
     'fuzzer': {
-      # TODO(crbug.com/1140770): Remove use_vaapi=false once fixed.
-      'gn_args': 'enable_ipc_fuzzer=true use_vaapi=false',
+      'gn_args': 'enable_ipc_fuzzer=true',
     },
 
     'gn_linux_upload': {

tools/mb/mb_config_expectations/chromium.clang.json

@@ -35,7 +35,6 @@
       "is_debug": false,
       "llvm_force_head_revision": true,
       "symbol_level": 1,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },

tools/mb/mb_config_expectations/chromium.fuzz.json

@@ -17,7 +17,6 @@
       "is_debug": false,
       "is_lsan": true,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },
@@ -55,7 +54,6 @@
       "is_debug": false,
       "target_cpu": "x86",
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true,
       "v8_target_cpu": "arm"
     }
@@ -71,7 +69,6 @@
       "proprietary_codecs": true,
       "target_cpu": "x86",
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true,
       "v8_target_cpu": "arm"
     }
@@ -100,7 +97,6 @@
       "is_lsan": true,
       "target_os": "chromeos",
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },
@@ -344,7 +340,6 @@
       "is_component_build": false,
       "is_debug": false,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },
@@ -358,7 +353,6 @@
       "is_debug": false,
       "proprietary_codecs": true,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },
@@ -406,7 +400,6 @@
       "is_component_build": false,
       "is_debug": false,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },
@@ -420,7 +413,6 @@
       "is_debug": false,
       "proprietary_codecs": true,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   }

tools/mb/mb_config_expectations/chromium.memory.json

@@ -142,7 +142,6 @@
       "is_debug": false,
       "symbol_level": 1,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   }

tools/mb/mb_config_expectations/tryserver.chromium.win.json

@@ -241,7 +241,6 @@
       "is_debug": false,
       "symbol_level": 1,
       "use_goma": true,
-      "use_vaapi": false,
       "v8_enable_verify_heap": true
     }
   },