KAT-50: Deleted unused imports cupertino and did disable RaisedButton in all pages

rescueapp/lib/AfterOpeningAirways.dart

-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 class AfterOpeningAirways extends StatefulWidget {
@@ -130,13 +129,7 @@ class _AfterOpeningAirwaysState extends State<AfterOpeningAirways> {
                                 fontWeight: FontWeight.w600,
                                 color: Colors.blue[900])),
                         color: Colors.blue,
-                        onPressed: () {
-                          Navigator.push(
-                            context,
-                            MaterialPageRoute(
-                                builder: (context) => AfterOpeningAirways()),
-                          );
-                        }))),
+                        onPressed: () {}))),
             SizedBox(
               height: 50,
             ),

rescueapp/lib/Ambulatory.dart

-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:rescueapp/SpontaneousBreathingPresent.dart';
 

rescueapp/lib/SpontaneousBreathingPresent.dart

-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:rescueapp/AfterOpeningAirways.dart';
 

rescueapp/lib/main.dart

-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:rescueapp/Ambulatory.dart';
 
@@ -14,8 +13,7 @@ class MyApp extends StatelessWidget {
         theme: ThemeData(
           primarySwatch: Colors.blue,
         ),
-        home: MyHomePage()
-        );
+        home: MyHomePage());
   }
 }
 
@@ -61,12 +59,7 @@ class MyHomePage extends StatelessWidget {
                       child: Text('REAL',
                           style: TextStyle(fontSize: 22, color: Colors.white)),
                       color: Colors.red,
-                      onPressed: () {
-                        Navigator.push(
-                          context,
-                          MaterialPageRoute(builder: (context) => MyHomePage()),
-                        );
-                      })),
+                      onPressed: () {})),
             ),
           ],
         ),