applications: serial_lte_modem: Remove SLM

Removing SLM application and related libraries and samples.
The list of removed components are:
- applications/serial_lte_modem
- lib/modem_slm
- samples/cellular/slm_shell

This functionality is available through Serial Modem Add-on:
https://github.com/nrfconnect/ncs-serial-modem

Signed-off-by: Tommi Rantanen <[email protected]>

Author: trantanen

.github/test-spec.yml

@@ -32,20 +32,6 @@
   - "doc/requirements.txt"
   - "scripts/tools-versions-linux.yml"
 
-"CI-iot-serial-lte-modem-test":
-  - "applications/serial_lte_modem/**/*"
-  - "lib/at_monitor/**/*"
-  - "lib/date_time/**/*"
-  - "lib/modem_info/**/*"
-  - "lib/modem_jwt/**/*"
-  - "lib/nrf_modem_lib/**/*"
-  - "lib/sms/**/*"
-  - "subsys/dfu/dfu_target/**/*"
-  - "subsys/net/lib/downloader/**/*"
-  - "subsys/net/lib/fota_download/**/*"
-  - "subsys/net/lib/ftp_client/**/*"
-  - "subsys/net/lib/nrf_cloud/**/*"
-
 "CI-iot-zephyr-lwm2m-test":
   - "lib/nrf_modem_lib/**/*"
   - "lib/at_monitor/**/*"

CODEOWNERS

@@ -37,17 +37,13 @@
 /applications/nrf_desktop/                @nrfconnect/ncs-si-bluebagel
 /applications/hpf/                        @nrfconnect/ncs-ll-ursus
 /applications/hpf/**/*.rst                @nrfconnect/ncs-lowlevel-doc
-/applications/serial_lte_modem/           @nrfconnect/ncs-co-networking @nrfconnect/ncs-lr-slm
-/applications/serial_lte_modem/src/lwm2m_carrier/ @nrfconnect/ncs-carrier
 /applications/connectivity_bridge/*.rst   @nrfconnect/ncs-cia-doc
 /applications/ipc_radio/*.rst             @nrfconnect/ncs-si-muffin-doc
 /applications/machine_learning/*.rst      @nrfconnect/ncs-si-muffin-doc
 /applications/matter_bridge/**/*.rst      @nrfconnect/ncs-matter-doc
 /applications/matter_weather_station/*.rst @nrfconnect/ncs-matter-doc
 /applications/nrf5340_audio/**/*.rst      @nrfconnect/ncs-audio-doc
 /applications/nrf_desktop/**/*.rst        @nrfconnect/ncs-si-bluebagel-doc
-/applications/serial_lte_modem/**/*.rst   @nrfconnect/ncs-iot-oulu-tampere-doc
-/applications/serial_lte_modem/doc/CARRIER_AT_commands.rst @nrfconnect/ncs-carrier-doc
 
 # Boards
 /boards/nordic/nrf7120pdk/                @nrfconnect/ncs-co-boards @rob-robinson-14 @Hi-Im-David
@@ -148,7 +144,6 @@
 /doc/nrf/libraries/modem/modem_info.rst   @nrfconnect/ncs-modem-doc
 /doc/nrf/libraries/modem/modem_jwt.rst    @nrfconnect/ncs-iot-oulu-tampere-doc
 /doc/nrf/libraries/modem/modem_key_mgmt.rst @nrfconnect/ncs-modem-doc
-/doc/nrf/libraries/modem/modem_slm.rst    @nrfconnect/ncs-iot-oulu-tampere-doc
 /doc/nrf/libraries/modem/pdn.rst          @nrfconnect/ncs-modem-doc
 /doc/nrf/libraries/modem/sms.rst          @nrfconnect/ncs-iot-positioning-doc
 /doc/nrf/libraries/modem/uicc_lwm2m.rst   @nrfconnect/ncs-modem-doc
@@ -392,7 +387,6 @@
 /lib/modem_info/                          @nrfconnect/ncs-co-networking @nrfconnect/ncs-modem @nrfconnect/ncs-modem-tre
 /lib/modem_jwt/                           @nrfconnect/ncs-iot-oulu @nrfconnect/ncs-modem
 /lib/modem_key_mgmt/                      @nrfconnect/ncs-co-networking @nrfconnect/ncs-modem
-/lib/modem_slm/                           @nrfconnect/ncs-lr-slm
 /lib/multithreading_lock/                 @nrfconnect/ncs-dragoon
 /lib/nrf_modem_lib/                       @nrfconnect/ncs-co-networking @nrfconnect/ncs-modem @nrfconnect/ncs-modem-tre
 /lib/pcm_mix/                             @nrfconnect/ncs-audio
@@ -493,7 +487,6 @@
 /samples/cellular/nrf_cloud_*             @nrfconnect/ncs-nrf-cloud
 /samples/cellular/nrf_provisioning/       @nrfconnect/ncs-iot-oulu
 /samples/cellular/modem_trace_flash/      @nrfconnect/ncs-modem
-/samples/cellular/slm_shell/              @nrfconnect/ncs-lr-slm
 /samples/cellular/sms/                    @nrfconnect/ncs-modem-tre
 /samples/cellular/uicc_lwm2m/             @stig-bjorlykke
 /samples/cellular/lte_ble_gateway/        @nrfconnect/ncs-cia
@@ -627,7 +620,6 @@
 /samples/cellular/modem_shell/*.rst       @nrfconnect/ncs-iot-positioning-doc
 /samples/cellular/nrf_cloud_*/**/*.rst    @nrfconnect/ncs-nrf-cloud-doc
 /samples/cellular/nrf_provisioning/*.rst  @nrfconnect/ncs-iot-oulu-tampere-doc
-/samples/cellular/slm_shell/*.rst         @nrfconnect/ncs-iot-oulu-tampere-doc
 /samples/cellular/sms/*.rst               @nrfconnect/ncs-iot-positioning-doc
 /samples/crypto/**/*.rst                  @nrfconnect/ncs-aegir-doc
 /samples/debug/memfault/*.rst             @nrfconnect/ncs-cia-doc