[messaging-app] press and hold on attachment doesn't work for v-cards corerctly

[Olga Kemmet]

krillin (r176)
This bug is somewhat related to this one: https://bugs.launchpad.net/ubuntu-ux/+bug/1367457

steps to reproduce:
1. go to the address book app
2. tap a contact and tap the "head" icon in the expansion
3. select share from the header and then pick the messaging app from the content hub
4. once in the compose view of the messaging app, you should see the v-card attached

Expected result:
To remove the attachment you need to press and hold on it until the contextual menu appears, then tap "Remove"

Actual result
For the v-card only one tap is needed and the contextual menu appears.

----------UX comment--------------

Desired resolution: Please alight the behaviour. The contextual menu should appear in this use case only after press & hold. It should be the same behaviour as for removing an image/file.