[fix] Remove CSS reset for number spin buttons

The TextInput element no longer uses the 'number' input type, so this reset is
no longer necessary. Furthermore, the reset potentially impacts non-framework
components.

Fix #1949

Author: necolas

packages/react-native-web/src/exports/AppRegistry/__tests__/__snapshots__/index-test.js.snap

@@ -5,7 +5,7 @@ exports[`AppRegistry getApplication "getStyleElement" produces styles that are a
 html{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:rgba(0,0,0,0);}
 body{margin:0;}
 button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0;}
-input::-webkit-inner-spin-button,input::-webkit-outer-spin-button,input::-webkit-search-cancel-button,input::-webkit-search-decoration,input::-webkit-search-results-button,input::-webkit-search-results-decoration{display:none;}
+input::-webkit-search-cancel-button,input::-webkit-search-decoration,input::-webkit-search-results-button,input::-webkit-search-results-decoration{display:none;}
 [stylesheet-group=\\"0.1\\"]{}
 :focus:not([data-focusvisible-polyfill]){outline: none;}
 [stylesheet-group=\\"1\\"]{}
@@ -30,7 +30,7 @@ exports[`AppRegistry getApplication returns "element" and "getStyleElement" 2`]
 html{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:rgba(0,0,0,0);}
 body{margin:0;}
 button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0;}
-input::-webkit-inner-spin-button,input::-webkit-outer-spin-button,input::-webkit-search-cancel-button,input::-webkit-search-decoration,input::-webkit-search-results-button,input::-webkit-search-results-decoration{display:none;}
+input::-webkit-search-cancel-button,input::-webkit-search-decoration,input::-webkit-search-results-button,input::-webkit-search-results-decoration{display:none;}
 [stylesheet-group=\\"0.1\\"]{}
 :focus:not([data-focusvisible-polyfill]){outline: none;}</style>"
 `;

packages/react-native-web/src/exports/StyleSheet/initialRules.js

@@ -13,8 +13,7 @@ const resets = [
   'body{margin:0;}',
   // minimal form pseudo-element reset
   'button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0;}',
-  ('input::-webkit-inner-spin-button,input::-webkit-outer-spin-button,' +
-    'input::-webkit-search-cancel-button,input::-webkit-search-decoration,' +
+  ('input::-webkit-search-cancel-button,input::-webkit-search-decoration,' +
     'input::-webkit-search-results-button,input::-webkit-search-results-decoration{display:none;}': string)
 ];