[ios] remove chromium.mac upstream folder

non-cq has been migrated. removing stale unused definition.

Bug: 912681
Change-Id: I169b2cc91c08004ce7cf5ebfacb3b4413f910c10
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2256443Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Commit-Queue: Jeff Yoon <jeffyoon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#781919}

ios/build/bots/chromium.mac/ios-simulator-noncq.json

-{
-  "comments": [
-    "Runs tests on 64-bit iOS 12 and 13 tests on iPad, iPhone,",
-    "@3x, and @2x on main waterfall ios-simulator-noncq."
-  ],
-  "xcode build version": "11e146",
-  "gn_args": [
-    "goma_dir=\"$(goma_dir)\"",
-    "ios_use_goma_rbe=true",
-    "is_component_build=false",
-    "is_debug=true",
-    "symbol_level=1",
-    "target_cpu=\"x64\"",
-    "target_os=\"ios\"",
-    "use_goma=true"
-  ],
-  "additional_compile_targets": [
-    "all"
-  ],
-  "configuration": "Debug",
-  "tests": [
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone 6s",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone 6s",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone X",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone 7",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad (6th generation)",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad Air 2",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "app": "crashpad_tests",
-      "device type": "iPhone X",
-      "os": "13.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone X",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone 7",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad (6th generation)",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad Air 2",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    },
-    {
-      "app": "crashpad_tests",
-      "device type": "iPhone X",
-      "os": "12.4",
-      "pool":"chromium.tests",
-      "host os": "Mac-10.15"
-    }
-  ]
-}