Remove iOS 11.4 tests from ios13-beta-simulator

Bug: 976348
Change-Id: I406ad72964ff3fdcbd6c055031e5db8bf742d9f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715155
Commit-Queue: Mike Dougherty <michaeldo@chromium.org>
Commit-Queue: Rohit Rao <rohitrao@chromium.org>
Auto-Submit: Mike Dougherty <michaeldo@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680166}

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

@@ -73,34 +73,6 @@
           }]
       }
     },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone X",
-      "os": "11.4",
-      "xcode build version": "10e1001",
-      "pool":"Chrome",
-      "host os": "Mac-10.14.4",
-      "optional_dimensions": {
-          "60": [{
-            "host os": "Mac-10.14.5"
-          }]
-      }
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad (6th generation)",
-      "os": "11.4",
-      "xcode build version": "10e1001",
-      "pool":"Chrome",
-      "host os": "Mac-10.14.4",
-      "optional_dimensions": {
-          "60": [{
-            "host os": "Mac-10.14.5"
-          }]
-      }
-    },
     {
       "include": "common_tests.json",
       "device type": "iPhone X",

ios/build/bots/chromium.mac/ios13-beta-simulator.json

@@ -75,34 +75,6 @@
           }]
       }
     },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPhone X",
-      "os": "11.4",
-      "xcode build version": "10e1001",
-      "pool":"Chrome",
-      "host os": "Mac-10.14.4",
-      "optional_dimensions": {
-          "60": [{
-            "host os": "Mac-10.14.5"
-          }]
-      }
-    },
-    {
-      "xcode parallelization": true,
-      "include": "eg2_tests.json",
-      "device type": "iPad (6th generation)",
-      "os": "11.4",
-      "xcode build version": "10e1001",
-      "pool":"Chrome",
-      "host os": "Mac-10.14.4",
-      "optional_dimensions": {
-          "60": [{
-            "host os": "Mac-10.14.5"
-          }]
-      }
-    },
     {
       "include": "common_tests.json",
       "device type": "iPhone X",