Revert "Revert change to RDAVIX build system but keep RDataFrame linked against it"

This reverts commit d6e02859.

net/davix/CMakeLists.txt

@@ -10,11 +10,10 @@ ROOT_STANDARD_LIBRARY_PACKAGE(RDAVIX
   SOURCES
     src/TDavixFile.cxx
     src/TDavixSystem.cxx
-  LIBRARIES
-    Davix::Davix
   DEPENDENCIES
     Net
     RIO
 )
 
 target_compile_options(RDAVIX PRIVATE -Wno-deprecated-declarations)
+target_link_libraries(RDAVIX PUBLIC Davix::Davix)

tree/dataframe/CMakeLists.txt

@@ -100,10 +100,8 @@ endif()
 
 if(sqlite)
   target_sources(ROOTDataFrame PRIVATE src/RSqliteDS.cxx)
-  target_include_directories(ROOTDataFrame PRIVATE ${SQLITE_INCLUDE_DIR})
   target_link_libraries(ROOTDataFrame PRIVATE RSQLite)
   if (davix)
-    target_include_directories(ROOTDataFrame PRIVATE ${DAVIX_INCLUDE_DIRS})
     target_link_libraries(ROOTDataFrame PRIVATE RDAVIX)
   endif()
 endif()