Remove BUILD_ARG: Will never build sanitize

xran does not work with Address Sanitizer. Thus, there is no reason to
keep these build arguments.

docker/Dockerfile.build.fhi72.native_arm.ubuntu

@@ -81,8 +81,7 @@ RUN /bin/sh oaienv && \
       --ninja --gNB \
       --build-lib "telnetsrv enbscope uescope nrscope" \
       -t oran_fhlib_5g --cmake-opt -Dxran_LOCATION=/opt/phy/fhi_lib/lib \
-      --build-e2 --cmake-opt -DXAPP_MULTILANGUAGE=OFF --cmake-opt -DKPM_VERSION=$KPM_VERSION --cmake-opt -DE2AP_VERSION=$E2AP_VERSION \
-      $BUILD_OPTION && \
+      --build-e2 --cmake-opt -DXAPP_MULTILANGUAGE=OFF --cmake-opt -DKPM_VERSION=$KPM_VERSION --cmake-opt -DE2AP_VERSION=$E2AP_VERSION && \
     # Mainly to see if the sanitize option was perfectly executed
     ldd ran_build/build/nr-softmodem && \
     ldd ran_build/build/liboran_fhlib_5g.so && \

docker/Dockerfile.build.fhi72.ubuntu

@@ -71,8 +71,7 @@ RUN /bin/sh oaienv && \
       --ninja --gNB --nrRU \
       --build-lib "telnetsrv enbscope uescope nrscope" \
       -t oran_fhlib_5g --cmake-opt -Dxran_LOCATION=/opt/phy/fhi_lib/lib \
-      --build-e2 --cmake-opt -DKPM_VERSION=$KPM_VERSION --cmake-opt -DE2AP_VERSION=$E2AP_VERSION \
-      $BUILD_OPTION && \
+      --build-e2 --cmake-opt -DKPM_VERSION=$KPM_VERSION --cmake-opt -DE2AP_VERSION=$E2AP_VERSION && \
     # Mainly to see if the sanitize option was perfectly executed
     ldd ran_build/build/nr-softmodem && \
     ldd ran_build/build/liboran_fhlib_5g.so && \

docker/Dockerfile.nrORU.fhi72.ubuntu

@@ -25,7 +25,6 @@ FROM ran-build-fhi72:latest AS ran-build
 
 #start from scratch for target executable
 FROM ubuntu:noble AS oai-nr-oru
-ARG BUILD_OPTION
 ENV DEBIAN_FRONTEND=noninteractive
 ENV TZ=Europe
 
@@ -50,11 +49,6 @@ RUN apt-get update && \
         xz-utils \
         libnuma-dev \
         libyaml-cpp-dev && \
-# if the --sanitize option was used to build, additional packages are required
-    /bin/bash -c 'if [[ "$BUILD_OPTION" = "--sanitize" ]]; then DEBIAN_FRONTEND=noninteractive apt-get install --yes \
-        libasan8 \
-        libubsan1 \
-        liblapacke; fi' && \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /opt/nr-oru/bin