Revert "bts: f_init_pcu: sleep before connect"

This reverts commit c089b415f5e3bbf5eb2de435b925581ca42d8872. The
additional sleep caused other tests to break, probably because it
triggered race conditions:
* TC_pcu_socket_connect_multi
* TC_pcu_socket_connect_si3gprs
* TC_si_sched_13_2bis_2ter_2quater

Adjust TC_pcu_socket_verify_info_ind test case error message to mention
OS#4179. This test is flapping now, most of the time the BTS sends a
CellID 0 because it did not receive the real CellID from the BSC yet.

Related: OS#4179
Change-Id: I2115c337f4601a4614b140715323c42803b003ee
1 file changed