Do not build/publish pdf and epub

It takes time, space and I'm not sure anyone is using it.

Signed-off-by: Davide Bettio <[email protected]>

Author: bettio

doc/CMakeLists.txt

@@ -186,7 +186,7 @@ foreach(LIBAVM_ERL_LIB ${ERLANG_LIBS})
 endforeach(LIBAVM_ERL_LIB)
 
 add_custom_target(doc #ALL
-    DEPENDS sphinx-html sphinx-pdf sphinx-epub
+    DEPENDS sphinx-html
 )
 
 if (TARGET GitHub_CI_Publish_Docs)
@@ -198,22 +198,6 @@ if (TARGET GitHub_CI_Publish_Docs)
         COMMENT "Prepare publish directory structure." VERBATIM
     )
 
-    file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/pdf)
-    add_custom_command(TARGET sphinx-pdf POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/pdf/AtomVM-${DOC_TREE_VERSION}.pdf ${CMAKE_CURRENT_BINARY_DIR}/html/pdf/
-        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/pdf
-        COMMENT "Copying pdf to download location" VERBATIM
-        DEPENDS $ENV{DOC_TREE_VERSION}
-    )
-
-    file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html/epub)
-    add_custom_command(TARGET sphinx-epub POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/epub/AtomVM-${DOC_TREE_VERSION}.epub ${CMAKE_CURRENT_BINARY_DIR}/html/epub/
-        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/epub
-        COMMENT "Copying epub to download location." VERBATIM
-        DEPENDS $ENV{DOC_TREE_VERSION}
-    )
-
     add_custom_command(TARGET sphinx-html POST_BUILD
         COMMAND touch .nojekyll
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html