qcacld-3.0: Remove csrScanFilter11dResult() prototype

csr_internal.h exports csrScanFilter11dResult() but the function is no
longer present, so remove the obsolete prototype.

Change-Id: Ie163dc247d47feeb0d6b5a33aa5d78d6fefbc167
CRs-Fixed: 2108355

core/sme/inc/csr_internal.h

@@ -1175,7 +1175,6 @@ struct csr_roamstruct {
 #endif
 
 QDF_STATUS csr_get_channel_and_power_list(tpAniSirGlobal pMac);
-QDF_STATUS csrScanFilter11dResult(tpAniSirGlobal pMac);
 
 QDF_STATUS csr_scan_filter_results(tpAniSirGlobal pMac);