Browser: Remove Select Text when longpressing on link

When a longpress is performed on a browser link,
context menu will be launched. One of the alternatives
"Select text", does not trigger any action when selected.

Remove this alternative since there are no action implemented
to handle this selection. Copying the link will still work as
before.

CRs-Fixed: 561520

Change-Id: I26d990a58e6cd60606ed0644b7ea0e74397d0e8f
2 files changed