#1134 - Removing enabled.email metric and supporting infrastructure

include/mbgl/ios/MGLMapboxEvents.h

@@ -41,7 +41,6 @@ extern NSString *const MGLEventGestureRotateStart;
 
 // You can call these methods from any thread.
 //
-+ (BOOL) checkEmailEnabled;
 + (BOOL) checkPushEnabled;
 
 // You can call this method from any thread.

platform/ios/MGLMapView.mm

@@ -359,8 +359,7 @@ mbgl::DefaultFileSource *mbglFileSource = nullptr;
         MGLEventKeyLatitude: @(latLng.latitude),
         MGLEventKeyLongitude: @(latLng.longitude),
         MGLEventKeyZoomLevel: @(zoom),
-        MGLEventKeyPushEnabled: @([MGLMapboxEvents checkPushEnabled]),
-        MGLEventKeyEmailEnabled: @([MGLMapboxEvents checkEmailEnabled])
+        MGLEventKeyPushEnabled: @([MGLMapboxEvents checkPushEnabled])
     }];
 
     return YES;

platform/ios/MGLMapboxEvents.m

@@ -548,32 +548,6 @@ NSString *const MGLEventGestureRotateStart = @"Rotation";
     }
 }
 
-// Can be called from any thread.
-//
-+ (BOOL) checkEmailEnabled {
-    BOOL (^mailCheckBlock)(void) = ^{
-        BOOL blockResult;
-        Class MFMailComposeViewController = NSClassFromString(@"MFMailComposeViewController");
-        if (MFMailComposeViewController) {
-            SEL canSendMail = NSSelectorFromString(@"canSendMail");
-            blockResult = ((BOOL (*)(id, SEL))[MFMailComposeViewController methodForSelector:canSendMail])(MFMailComposeViewController, canSendMail);
-        }
-        return blockResult;
-    };
-
-    __block BOOL result;
-
-    if ( ! [[NSThread currentThread] isMainThread]) {
-        dispatch_sync(dispatch_get_main_queue(), ^{
-            result = mailCheckBlock();
-        });
-    } else {
-        result = mailCheckBlock();
-    }
-
-    return result;
-}
-
 // Can be called from any thread.
 //
 + (BOOL) checkPushEnabled {