Removing MSAL Library

Removing reference to MSAL lib. since we are using the Android auth wrapper for authentication

Author: Irvine Sunday

app/build.gradle

@@ -44,7 +44,6 @@ dependencies {
     implementation 'com.android.volley:volley:1.1.0'
     // Include the SDK as a dependency
     implementation 'com.microsoft.graph:microsoft-graph:1.2.0'
-    implementation 'com.microsoft.identity.client:msal:0.2.2'
     implementation 'com.microsoft.graph:microsoft-graph-android-auth:0.1.0-SNAPSHOT'
     // Include GSON as a dependency
     implementation 'com.google.code.gson:gson:2.6.2'