Remove unused files

Get rid of files that will not be used with Nitrogen such as
- overlay configurations
- other board configurations
- scripts, other

Signed-off-by: Zbigniew Bodek <zbigniew.bodek@huawei.com>

boards/cc3220sf_launchxl.conf

-# Networking Config:
-CONFIG_NET_IPV4=y
-CONFIG_NET_IPV6=n
-CONFIG_NET_SOCKETS=y
-CONFIG_NET_NATIVE=n
-CONFIG_TEST_RANDOM_GENERATOR=y
-
-# Enable SimpleLink WiFi Driver and Socket Offload
-CONFIG_WIFI=y
-CONFIG_WIFI_SIMPLELINK=y
-CONFIG_NET_SOCKETS_OFFLOAD=y
-
-# Enable TLS credential filenames for secure socket offload
-CONFIG_TLS_CREDENTIAL_FILENAMES=y
-
-# Disable unneeded settings from the base prj.conf:
-CONFIG_DNS_RESOLVER=n
-CONFIG_NET_CONFIG_SETTINGS=n
-CONFIG_NET_CONFIG_MY_IPV4_ADDR=""
-CONFIG_NET_CONFIG_PEER_IPV4_ADDR=""
-
-# Debugging
-CONFIG_NET_LOG=y
-CONFIG_WIFI_LOG_LEVEL_DBG=y
-CONFIG_DEBUG=y
-CONFIG_ASSERT=y

boards/cc3235sf_launchxl.conf

-# Networking Config:
-CONFIG_NET_IPV4=y
-CONFIG_NET_IPV6=n
-CONFIG_NET_SOCKETS=y
-CONFIG_NET_NATIVE=n
-CONFIG_TEST_RANDOM_GENERATOR=y
-
-# Enable SimpleLink WiFi Driver and Socket Offload
-CONFIG_WIFI=y
-CONFIG_WIFI_SIMPLELINK=y
-CONFIG_NET_SOCKETS_OFFLOAD=y
-
-# Enable TLS credential filenames for secure socket offload
-CONFIG_TLS_CREDENTIAL_FILENAMES=y
-
-# Disable unneeded settings from the base prj.conf:
-CONFIG_DNS_RESOLVER=n
-CONFIG_NET_CONFIG_SETTINGS=n
-CONFIG_NET_CONFIG_MY_IPV4_ADDR=""
-CONFIG_NET_CONFIG_PEER_IPV4_ADDR=""
-
-# Debugging
-CONFIG_NET_LOG=y
-CONFIG_WIFI_LOG_LEVEL_DBG=y
-CONFIG_DEBUG=y
-CONFIG_CC3235SF_DEBUG=y
-CONFIG_ASSERT=y

boards/pinnacle_100_dvk.conf

-CONFIG_MODEM=y
-CONFIG_MODEM_HL7800=y

docker-test.sh

-# Copyright (c) 2020 Intel Corporation
-# SPDX-License-Identifier: Apache-2.0
-
-if [ -z "$RUNNING_FROM_MAIN_SCRIPT" ]; then
-    echo "Do not run this script directly!"
-    echo "Run $ZEPHYR_BASE/scripts/net/run-sample-tests.sh instead."
-    exit 1
-fi
-
-echo "Starting MQTT test"
-
-start_configuration || return $?
-start_docker \
-    "/usr/local/sbin/mosquitto -v -c /usr/local/etc/mosquitto/mosquitto.conf" || return $?
-
-start_zephyr -DOVERLAY_CONFIG=overlay-sample.conf "$overlay"
-
-wait_zephyr
-result=$?
-
-if [ $result -ne 0 ]; then
-	return $result
-fi
-
-stop_docker
-
-# test TLS
-echo "Starting MQTT TLS test"
-
-start_docker \
-    "/usr/local/sbin/mosquitto -v -c /usr/local/etc/mosquitto/mosquitto-tls.conf" || return $?
-
-start_zephyr -DOVERLAY_CONFIG="overlay-tls.conf overlay-sample.conf" "$overlay"
-
-wait_zephyr
-result=$?
-
-if [ $result -ne 0 ]; then
-	return $result
-fi
-
-stop_docker
-return $result
-
-# FIXME: proxy test does not work as expected
-
-# TLS and SOCKS5, mosquitto TLS is already running
-echo "Starting MQTT TLS + proxy test"
-
-start_docker "/usr/sbin/danted" || return $?
-
-start_zephyr -DOVERLAY_CONFIG="overlay-tls.conf overlay-sample.conf overlay-socks5.conf" "$overlay" || return $?
-
-wait_zephyr
-result=$?
-
-stop_docker

overlay-bt.conf

-CONFIG_BT=y
-CONFIG_BT_DEBUG_LOG=y
-CONFIG_BT_SMP=y
-CONFIG_BT_PERIPHERAL=y
-CONFIG_BT_CENTRAL=y
-CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y
-CONFIG_BT_DEVICE_NAME="Zephyr MQTT"
-CONFIG_NET_L2_BT=y
-CONFIG_NET_IPV4=n
-CONFIG_NET_IPV6=y
-CONFIG_NET_CONFIG_BT_NODE=y
-CONFIG_NET_CONFIG_NEED_IPV6=y
-CONFIG_NET_CONFIG_NEED_IPV4=n
-CONFIG_NET_CONFIG_MY_IPV4_ADDR=""
-CONFIG_NET_CONFIG_PEER_IPV4_ADDR=""

overlay-sample.conf

-# Lower values used for testing
-CONFIG_NET_SAMPLE_APP_MAX_ITERATIONS=3
-CONFIG_NET_SAMPLE_APP_MAX_CONNECTIONS=3

overlay-socks5.conf

-CONFIG_SOCKS=y

overlay-websocket.conf

-CONFIG_WEBSOCKET_CLIENT=y
-CONFIG_MQTT_LIB_WEBSOCKET=y
-CONFIG_HEAP_MEM_POOL_SIZE=1500

sample.yaml

-sample:
-  description: MQTT publisher sample application
-  name: MQTT publisher
-common:
-  harness: net
-  tags: net mqtt
-tests:
-  sample.net.mqtt_publisher:
-    platform_allow: frdm_k64f qemu_x86 pinnacle_100_dvk
-  sample.net.mqtt_publisher.userspace:
-    platform_allow: frdm_k64f qemu_x86
-    extra_args: CONFIG_USERSPACE=y
-  sample.net.mqtt_publisher.bt:
-    platform_allow: 96b_nitrogen
-    tags: net mqtt bluetooth