docs: remove old doxygen builds (#24743)

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

CMakeLists.txt

@@ -496,7 +496,6 @@ add_custom_target(uorb_graph DEPENDS ${uorb_graph_config})
 include(bloaty)
 
 
-include(doxygen)
 include(metadata)
 include(package)
 

Makefile

@@ -365,7 +365,7 @@ coverity_scan: px4_sitl_default
 
 # Documentation
 # --------------------------------------------------------------------
-.PHONY: parameters_metadata airframe_metadata module_documentation extract_events px4_metadata doxygen
+.PHONY: parameters_metadata airframe_metadata module_documentation extract_events px4_metadata
 
 parameters_metadata:
 	@$(MAKE) --no-print-directory px4_sitl_default metadata_parameters ver_gen
@@ -381,12 +381,6 @@ extract_events:
 
 px4_metadata: parameters_metadata airframe_metadata module_documentation extract_events
 
-doxygen:
-	@mkdir -p "$(SRC_DIR)"/build/doxygen
-	@cd "$(SRC_DIR)"/build/doxygen && cmake "$(SRC_DIR)" $(CMAKE_ARGS) -G"$(PX4_CMAKE_GENERATOR)" -DCONFIG=px4_sitl_default -DBUILD_DOXYGEN=ON
-	@$(PX4_MAKE) -C "$(SRC_DIR)"/build/doxygen
-	@touch "$(SRC_DIR)"/build/doxygen/Documentation/.nojekyll
-
 # Style
 # --------------------------------------------------------------------
 .PHONY: check_format format check_newlines

cmake/doxygen.cmake

@@ -1,61 +0,0 @@
-############################################################################
-#
-#   Copyright (c) 2019 PX4 Development Team. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name PX4 nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
-# Doxygen
-
-option(BUILD_DOXYGEN "Build doxygen documentation" OFF)
-
-if (BUILD_DOXYGEN)
-	find_package(Doxygen)
-	if (DOXYGEN_FOUND)
-	    # set input and output files
-	    set(DOXYGEN_IN ${CMAKE_SOURCE_DIR}/Documentation/Doxyfile.in)
-	    set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
-
-	    # request to configure the file
-	    configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
-
-	    # note the option ALL which allows to build the docs together with the application
-	    add_custom_target(doxygen ALL
-	        COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
-	        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-			COMMENT "Generating documentation with Doxygen"
-			DEPENDS uorb_msgs parameters
-			VERBATIM
-			USES_TERMINAL
-			)
-
-	else()
-		message("Doxygen needs to be installed to generate documentation")
-	endif()
-endif()