chore(test): remove old browsers due to issues with automation

browserstack-browsers.js

@@ -32,40 +32,6 @@ export default {
     os_version: "8.0",
     real_mobile: true,
   },
-
-  // Older mainstream
-  BS_Chrome_50: {
-    base: "BrowserStack",
-    browserName: "chrome",
-    browser_version: "50",
-    os: "Windows",
-    os_version: "10",
-  },
-  BS_Firefox_52: {
-    base: "BrowserStack",
-    browserName: "firefox",
-    browser_version: "52",
-    os: "Windows",
-    os_version: "10",
-  },
-  BS_Safari_10: {
-    base: "BrowserStack",
-    browserName: "safari",
-    browser_version: "10.1",
-    os: "OS X",
-    os_version: "Sierra",
-  },
-
-  // Misc
-  BS_iphone_10: {
-    base: "BrowserStack",
-    browserName: "Mobile Safari",
-    browser_version: null,
-    device: "iPhone 7",
-    real_mobile: true,
-    os: "ios",
-    os_version: "10.3",
-  },
   BS_MS_Edge: {
     base: "BrowserStack",
     browserName: "edge",
@@ -73,12 +39,4 @@ export default {
     os: "Windows",
     os_version: "10",
   },
-  BS_IE_11: {
-    base: "BrowserStack",
-    browserName: "ie",
-    browser_version: "11.0",
-    os: "Windows",
-    os_version: "7",
-    es5: true,
-  },
 };