Remove F1-related flags from build_oai script

cmake_targets/build_oai

@@ -105,12 +105,6 @@ Options
    Specify gen_nvram_path (default \"$gen_nvram_path\")
 -a | --agent
    Enables agent for software-defined control of the eNB
---pdcp-split
-   Enables PDCP-RLC U plane split
---CU
-   Build the CU entity 
---DU 
-   Build the CU entity 
 -r | --3gpp-release
    default is Rel14,
    Rel8 limits the implementation to 3GPP Release 8 version
@@ -219,12 +213,6 @@ function main() {
        -a | --agent)
 	    echo_info "FlexRAN support is always compiled into the eNB"
 	    shift;;
-       --pdcp-split | --CU | --DU )
-	    PDCP_SPLIT=1
-	    CU=1
-	    DU=1
-	    echo_info "Will compile for $1 with F1AP support "
-	    shift;;
        --UE)
             UE=1
             UETARGET="True"
@@ -485,7 +473,7 @@ function main() {
 
   if [ "$INSTALL_EXTERNAL" = "1" ] ; then
     echo_info "Installing packages"
-    check_install_oai_software $PDCP_SPLIT
+    check_install_oai_software
     if [ "$HW" == "OAI_USRP" ] ; then
       echo_info "installing packages for USRP support"
       check_install_usrp_uhd_driver
@@ -505,11 +493,6 @@ function main() {
       install_protobuf_from_source
       install_protobuf_c_from_source
     fi
-    if [ "$PDCP_SPLIT" == "1" ] ; then
-      echo_info "installing protobuf/protobuf-c for PDCP/RLC split support"
-      install_protobuf_from_source
-      install_protobuf_c_from_source
-    fi
   fi
 
   if [ "$INSTALL_OPTIONAL" = "1" ] ; then