🔥 Remove code to build JSON objects

In an earlier version of this PR, before I added mocking to the plugin,
we saved JSON objects directly. We created the objects to save by
removing results from the in-memory objects using a destructuring
assignment.

However, after the mocking was added, we create objects in native code.
So we don't need to create them here and can remove these unused
variables.
#1144 (comment)

www/js/bluetooth/BluetoothScanPage.tsx

@@ -97,7 +97,6 @@ const BluetoothScanPage = ({ ...props }: any) => {
         in_range: status,
       },
     }));
-    let { monitorResult: _, in_range: _, ...noResultDevice } = sampleBLEDevices[uuid];
     window['cordova']?.plugins?.BEMDataCollection.mockBLEObjects(
       status ? 'REGION_ENTER' : 'REGION_EXIT',
       uuid,
@@ -118,16 +117,6 @@ const BluetoothScanPage = ({ ...props }: any) => {
         rangeResult: result,
       },
     }));
-    // we don't want to exclude monitorResult and rangeResult from the values
-    // that we save because they are the current or previous result, just
-    // in a different format
-    // https://stackoverflow.com/a/34710102
-    let {
-      monitorResult: _,
-      rangeResult: _,
-      in_range: _,
-      ...noResultDevice
-    } = sampleBLEDevices[uuid];
     let parsedResult = JSON.parse(result);
     parsedResult.beacons.forEach((beacon) => {
       window['cordova']?.plugins?.BEMDataCollection.mockBLEObjects(