civetweb: remove obsolete code

CODEOWNERS

@@ -664,7 +664,6 @@
 /samples/net/mqtt_publisher/              @rlubos
 /samples/net/sockets/coap_*/              @rlubos
 /samples/net/sockets/                     @rlubos @tbursztyka @pfalcon
-/samples/net/*civetweb*                   @Nukersson
 /samples/sensor/                          @MaureenHelm
 /samples/shields/                         @avisconti
 /samples/subsys/logging/                  @nordic-krch @jakub-uC

MAINTAINERS.yml

@@ -1991,16 +1991,6 @@ West:
         - manifest-canopennode
         - "area: CAN"
 
-"West project: civetweb":
-    status: obsolete
-    files:
-        - samples/net/civetweb/
-        - modules/Kconfig.civetweb
-    labels:
-        - manifest-civetweb
-        - "area: Networking"
-        - "area: civetweb"
-
 "West project: cmsis":
     status: maintained
     maintainers:

modules/Kconfig

@@ -9,7 +9,6 @@ comment "Optional modules. Make sure they're installed, via the project manifest
 
 source "modules/Kconfig.altera"
 source "modules/Kconfig.atmel"
-source "modules/Kconfig.civetweb"
 source "modules/Kconfig.cmsis"
 source "modules/Kconfig.cypress"
 source "modules/Kconfig.eos_s3"

modules/deprecation_warnings.cmake

@@ -11,9 +11,4 @@
 # This is done in a separate CMake file because the modules.cmake file
 # in this same directory is evaluated before Kconfig runs.
 
-if(CONFIG_CIVETWEB)
-  message(WARNING "The civetweb module is deprecated. \
-                   Unless someone volunteers to maintain this module, \
-                   support for it will be removed in Zephyr v3.2."
-    )
-endif()
+# (No modules are currently deprecated.)