Back out Electron 7.1.1/7.1.2 upgrades

Summary:
Original commit changeset: eddfbb3571c7
Original commit changeset: f7300f527b65

Pains me to do this, but probably our best chance right now to get a release out.

Reviewed By: cekkaewnumchai

Differential Revision: D18687890

fbshipit-source-id: 05d13aca71457ca6dd19f5b45d58158ae223e66f

src/utils/exportData.tsx

@@ -690,9 +690,8 @@ export function showOpenDialog(store: Store) {
     properties: ['openFile'],
     filters: [{extensions: ['flipper', 'json', 'txt'], name: 'Flipper files'}],
   };
-  remote.dialog.showOpenDialog(options).then(result => {
-    const filePaths = result.filePaths;
-    if (filePaths.length > 0) {
+  remote.dialog.showOpenDialog(options, (filePaths?: Array<string>) => {
+    if (filePaths !== undefined && filePaths.length > 0) {
       tryCatchReportPlatformFailures(() => {
         importFileToStore(filePaths[0], store);
       }, `${IMPORT_FLIPPER_TRACE_EVENT}:UI`);
@@ -701,17 +700,14 @@ export function showOpenDialog(store: Store) {
 }
 
 export function startFileExport(dispatch: Store['dispatch']) {
-  electron.remote.dialog
-    .showSaveDialog(
-      // @ts-ignore This appears to work but isn't allowed by the types
-      null,
-      {
-        title: 'FlipperExport',
-        defaultPath: path.join(os.homedir(), 'FlipperExport.flipper'),
-      },
-    )
-    .then(async (result: electron.SaveDialogReturnValue) => {
-      const file = result.filePath;
+  electron.remote.dialog.showSaveDialog(
+    // @ts-ignore This appears to work but isn't allowed by the types
+    null,
+    {
+      title: 'FlipperExport',
+      defaultPath: path.join(os.homedir(), 'FlipperExport.flipper'),
+    },
+    async (file: string) => {
       if (!file) {
         return;
       }
@@ -722,7 +718,8 @@ export function startFileExport(dispatch: Store['dispatch']) {
           closeOnFinish: false,
         }),
       );
-    });
+    },
+  );
 }
 
 export function startLinkExport(dispatch: Store['dispatch']) {