v0.115 remove unused suppressions

Summary:
removed unused suppressions
```
~/fbsource/fbcode/flow/tool remove-comments --bin `which flow` ~/www
~/fbsource/fbcode/flow/tool remove-comments --bin `which flow` ~/www/html/js/mobile
~/fbsource/fbcode/flow/tool remove-comments --bin `which flow` ~/www/html/js/service_workers
~/fbsource/fbcode/flow/tool remove-comments --bin `which flow` ~/www/html/js/bladerunner
```
reverted generated files
```
hg status -n | xargs grep -P -l '@(partially-)?generated' | xargs hg revert -r .
```
prettified
```
hg status -n | xargs grep -l 'format' | xargs -P 20 -n 1000 prettier --write
```
reverted changes due to lingering Flow errors
```
html/js/bladerunner/lib/live_feed/fetch_experiment/GraphQLBatchRequest.js
html/shared/ads/types/AdsDraftPublishRealtimeTypes.js
html/shared/banzai/BanzaiLooper.js
html/shared/draft-js/component/base/DraftEditor.react.js
html/shared/modules/BigPipe.js
html/shared/modules/ReactRenderer.js
```

drop-conflicts

Reviewed By: dsainati1

Differential Revision: D19290448

fbshipit-source-id: cfdaefb8b5244483192e93d9edf8649a2900d2c5

src/component/base/DraftEditor.react.js

@@ -302,12 +302,6 @@ class DraftEditor extends React.Component<DraftEditorProps, State> {
         accessibilityID: this._placeholderAccessibilityID,
       };
 
-      /* $FlowFixMe(>=0.112.0 site=mobile) This comment suppresses an error
-       * found when Flow v0.112 was deployed. To see the error delete this
-       * comment and run Flow. */
-      /* $FlowFixMe(>=0.112.0 site=www) This comment suppresses an error found
-       * when Flow v0.112 was deployed. To see the error delete this comment
-       * and run Flow. */
       /* $FlowFixMe(>=0.112.0 site=www,mobile) This comment suppresses an error
        * found when Flow v0.112 was deployed. To see the error delete this
        * comment and run Flow. */

src/component/contents/DraftEditorContents-core.react.js

@@ -224,12 +224,6 @@ class DraftEditorContents extends React.Component<Props> {
       const child = React.createElement(
         Element,
         childProps,
-        /* $FlowFixMe(>=0.112.0 site=mobile) This comment suppresses an error
-         * found when Flow v0.112 was deployed. To see the error delete this
-         * comment and run Flow. */
-        /* $FlowFixMe(>=0.112.0 site=www) This comment suppresses an error
-         * found when Flow v0.112 was deployed. To see the error delete this
-         * comment and run Flow. */
         /* $FlowFixMe(>=0.112.0 site=www,mobile) This comment suppresses an
          * error found when Flow v0.112 was deployed. To see the error delete
          * this comment and run Flow. */

src/component/contents/exploration/DraftEditorContentsExperimental.react.js

@@ -146,12 +146,6 @@ class DraftEditorContentsExperimental extends React.Component<Props> {
         blockRenderMap.get('unstyled');
       const wrapperTemplate = configForType.wrapper;
       processedBlocks.push({
-        /* $FlowFixMe(>=0.112.0 site=mobile) This comment suppresses an error
-         * found when Flow v0.112 was deployed. To see the error delete this
-         * comment and run Flow. */
-        /* $FlowFixMe(>=0.112.0 site=www) This comment suppresses an error
-         * found when Flow v0.112 was deployed. To see the error delete this
-         * comment and run Flow. */
         /* $FlowFixMe(>=0.112.0 site=www,mobile) This comment suppresses an
          * error found when Flow v0.112 was deployed. To see the error delete
          * this comment and run Flow. */

src/component/utils/isInstanceOfNode.js

@@ -19,7 +19,6 @@ function isInstanceOfNode(target: ?EventTarget): boolean {
     if (!node.ownerDocument.defaultView) {
       return node instanceof Node;
     }
-    // $FlowFixMe https://github.com/DefinitelyTyped/DefinitelyTyped/issues/11508#issuecomment-256045682
     if (node instanceof node.ownerDocument.defaultView.Node) {
       return true;
     }