[iOS]Removed duplicate tasks for ios13-sdk-simulator

Fixed recipe failure for ios13-sdk-simulator
"recipe infra failure: Uncaught Exception:
AssertionError('Triggered same task twice:
ios_chrome_integration_egtests (iPad Pro (12.9-inch) iOS 12.4) shard 0 (with patch)',)"
https://ci.chromium.org/p/chromium/builders/ci/ios13-sdk-simulator?limit=200

Change-Id: I0e0a80b45aa6f186c90e246914655d1f7bc3651e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1906928Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Commit-Queue: Maksym Onufriienko <monufriienko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#713966}

ios/build/bots/chromium.fyi/ios13-sdk-simulator.json

@@ -140,22 +140,6 @@
       "host os": "Mac-10.14.6",
       "pool":"chromium.tests"
     },
-    {
-      "include": "eg_cq_tests.json",
-      "device type": "iPad Pro (12.9-inch)",
-      "os": "12.4",
-      "xcode build version": "11b44",
-      "host os": "Mac-10.14.6",
-      "pool":"chromium.tests"
-    },
-    {
-      "include": "eg_tests.json",
-      "device type": "iPhone X",
-      "os": "12.4",
-      "xcode build version": "11b44",
-      "host os": "Mac-10.14.6",
-      "pool":"chromium.tests"
-    },
     {
       "include": "eg_tests.json",
       "device type": "iPad Air (3rd generation)",