libtasn1: Drop bits after version update upstream

Version has been updated to 4.0 upstream after commit id
02cdce9ef21b021ea9cc1cefe34b633ba009ee3c. No need to keep
old version 3.5 recipe along with backported patches.

Signed-off-by: Yasir-Khan <yasir_khan@mentor.com>
Merge pull request #277 from Yasir-Khan/libtasn1

libtasn1: Drop bits after version update upstream