Revert "Ims: Update conferenceHostConnection state for a conference call"

If call is immediately dropped soon after initiating, <orignalConnection>
is set updated to NULL as there are no more calls. Any access to this
<orginalConnection> will then result in NPE.
To fix this, revert commit 2e5895c75883ad258e87d69f80c4e756b8633e0d.

Change-Id: Ia4e151525d5b265f48d1a915935bfa753f55d217
CRs-Fixed: 806071
1 file changed