Remove Google Maps vs OSM

apps/frontend-mobile/app/(tabs)/map.tsx

@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from 'react';
 import { View, StyleSheet, Text } from 'react-native';
-import MapView, { Marker, UrlTile, PROVIDER_DEFAULT } from 'react-native-maps';
+import MapView, { Marker, UrlTile } from 'react-native-maps';
 import { useRouter } from 'expo-router';
 import { getPharmacies } from '../../services/pharmacies';
 import { LoadingSpinner } from '../../components/LoadingSpinner';
@@ -54,7 +54,6 @@ export default function MapScreen() {
     <View style={styles.container}>
       <MapView
         style={styles.map}
-        provider={PROVIDER_DEFAULT}
         mapType="none"
         region={region}
         onRegionChangeComplete={setRegion}