qcacld-3.0: Remove connection manager Macro from kbuild

Remove connection manager Macro from kbuild.

Change-Id: Ica3e5b36c7d8d885f02c906db3456227d25cdfc6
CRs-Fixed: 2979612

Kbuild

@@ -3029,7 +3029,6 @@ endif
 cppflags-$(CONFIG_WLAN_SYSFS_TDLS_PEERS) += -DWLAN_SYSFS_TDLS_PEERS
 cppflags-$(CONFIG_WLAN_SYSFS_RANGE_EXT) += -DWLAN_SYSFS_RANGE_EXT
 
-cppflags-y += -DFEATURE_CM_ENABLE
 cppflags-$(CONFIG_QCACLD_WLAN_LFR2) += -DWLAN_FEATURE_PREAUTH_ENABLE
 cppflags-y += -DCONN_MGR_ADV_FEATURE