Remove libxml2: we don't use it

CMakeLists.txt

@@ -37,9 +37,6 @@ include("cmake_targets/macros.cmake")
 ###################################
 include(FindPkgConfig)
 
-pkg_search_module(LIBXML2 libxml-2.0 REQUIRED)
-include_directories(${LIBXML2_INCLUDE_DIRS})
-
 pkg_search_module(OPENSSL openssl REQUIRED)
 include_directories(${OPENSSL_INCLUDE_DIRS})
 
@@ -2159,7 +2156,6 @@ target_link_libraries(lte-softmodem PRIVATE
   ${NAS_UE_LIB} ITTI SIMU SIMU_ETH
   -Wl,--end-group z dl)
 
-target_link_libraries(lte-softmodem PRIVATE ${LIBXML2_LIBRARIES})
 target_link_libraries(lte-softmodem PRIVATE pthread m CONFIG_LIB rt crypt ${CRYPTO_LIBRARIES} ${OPENSSL_LIBRARIES} sctp)
 target_link_libraries(lte-softmodem PRIVATE ${T_LIB})
 target_link_libraries(lte-softmodem PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)
@@ -2222,7 +2218,6 @@ target_link_libraries(lte-uesoftmodem PRIVATE
   ${NAS_UE_LIB} ITTI ${ATLAS_LIBRARIES}
   -Wl,--end-group z dl)
 
-target_link_libraries(lte-uesoftmodem PRIVATE ${LIBXML2_LIBRARIES})
 target_link_libraries(lte-uesoftmodem PRIVATE pthread m CONFIG_LIB rt crypt ${CRYPTO_LIBRARIES} ${OPENSSL_LIBRARIES} sctp ${ATLAS_LIBRARIES})
 target_link_libraries(lte-uesoftmodem PRIVATE ${T_LIB})
 target_link_libraries(lte-uesoftmodem PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)
@@ -2264,7 +2259,6 @@ target_link_libraries(nr-softmodem PRIVATE
   x2ap f1ap m2ap m3ap e1ap
   -Wl,--end-group z dl)
 
-target_link_libraries(nr-softmodem PRIVATE ${LIBXML2_LIBRARIES})
 target_link_libraries(nr-softmodem PRIVATE pthread m CONFIG_LIB rt crypt ${CRYPTO_LIBRARIES} ${OPENSSL_LIBRARIES} sctp ${ATLAS_LIBRARIES})
 target_link_libraries(nr-softmodem PRIVATE ${T_LIB})
 target_link_libraries(nr-softmodem PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)
@@ -2327,7 +2321,6 @@ target_link_libraries(nr-uesoftmodem PRIVATE
   ITTI ${ATLAS_LIBRARIES} LIB_5GNAS_GNB LIB_NAS_SIMUE ${NAS_SIM_LIB} SIMU SIMU_ETH
   -Wl,--end-group z dl)
 
-target_link_libraries(nr-uesoftmodem PRIVATE ${LIBXML2_LIBRARIES})
 target_link_libraries(nr-uesoftmodem PRIVATE pthread m CONFIG_LIB rt crypt ${CRYPTO_LIBRARIES} ${OPENSSL_LIBRARIES} ${ATLAS_LIBRARIES})
 target_link_libraries(nr-uesoftmodem PRIVATE ${T_LIB})
 target_link_libraries(nr-uesoftmodem PRIVATE asn1_nr_rrc_hdrs asn1_lte_rrc_hdrs)