drivers: video: Remove dedicated sensor dir

Keep flat video driver directory for now.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
diff --git a/drivers/video/CMakeLists.txt b/drivers/video/CMakeLists.txt
index c607da0..a728bad 100644
--- a/drivers/video/CMakeLists.txt
+++ b/drivers/video/CMakeLists.txt
@@ -1,10 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 
-add_subdirectory(sensor)
-
 zephyr_library()
 
 zephyr_library_sources(video_common.c)
 
 zephyr_library_sources_ifdef(CONFIG_VIDEO_MCUX_CSI	video_mcux_csi.c)
 zephyr_library_sources_ifdef(CONFIG_VIDEO_SW_GENERATOR	video_sw_generator.c)
+zephyr_library_sources_ifdef(CONFIG_VIDEO_MT9M114	mt9m114.c)
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index b40a4de..0e124be 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -32,6 +32,6 @@
 
 source "drivers/video/Kconfig.sw_generator"
 
-source "drivers/video/sensor/Kconfig"
+source "drivers/video/Kconfig.mt9m114"
 
 endif # VIDEO
diff --git a/drivers/video/sensor/Kconfig.mt9m114 b/drivers/video/Kconfig.mt9m114
similarity index 100%
rename from drivers/video/sensor/Kconfig.mt9m114
rename to drivers/video/Kconfig.mt9m114
diff --git a/drivers/video/sensor/mt9m114.c b/drivers/video/mt9m114.c
similarity index 100%
rename from drivers/video/sensor/mt9m114.c
rename to drivers/video/mt9m114.c
diff --git a/drivers/video/sensor/CMakeLists.txt b/drivers/video/sensor/CMakeLists.txt
deleted file mode 100644
index 05cb58c..0000000
--- a/drivers/video/sensor/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-
-zephyr_library()
-
-zephyr_library_sources_ifdef(CONFIG_VIDEO_MT9M114  mt9m114.c)
diff --git a/drivers/video/sensor/Kconfig b/drivers/video/sensor/Kconfig
deleted file mode 100644
index 10f37ec..0000000
--- a/drivers/video/sensor/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-# Kconfig - VIDEO driver configuration options
-
-#
-# Copyright (c) 2019 Linaro Limited
-#
-# SPDX-License-Identifier: Apache-2.0
-#
-
-#
-# VIDEO Sensor Drivers
-#
-
-source "drivers/video/sensor/Kconfig.mt9m114"