Remove legacy network code

src/CMakeData-screen.cmake

@@ -70,7 +70,6 @@ list(APPEND SMDATA_SCREEN_REST_SRC
             "ScreenMiniMenu.cpp"
             "ScreenNameEntry.cpp"
             "ScreenNameEntryTraditional.cpp"
-            "ScreenPackages.cpp"
             "ScreenPlayerOptions.cpp"
             "ScreenProfileLoad.cpp"
             "ScreenProfileSave.cpp"
@@ -123,7 +122,6 @@ list(APPEND SMDATA_SCREEN_REST_HPP
             "ScreenMiniMenu.h"
             "ScreenNameEntry.h"
             "ScreenNameEntryTraditional.h"
-            "ScreenPackages.h"
             "ScreenPlayerOptions.h"
             "ScreenProfileLoad.h"
             "ScreenProfileSave.h"
@@ -160,38 +158,12 @@ source_group("Screens\\\\Others"
              ${SMDATA_SCREEN_REST_SRC}
              ${SMDATA_SCREEN_REST_HPP})
 
-list(APPEND SMDATA_SCREEN_NET_SRC
-            "ScreenNetEvaluation.cpp"
-            "ScreenNetRoom.cpp"
-            "ScreenNetSelectBase.cpp"
-            "ScreenNetSelectMusic.cpp"
-            "ScreenNetworkOptions.cpp")
-
-list(APPEND SMDATA_SCREEN_NET_HPP
-            "ScreenNetEvaluation.h"
-            "ScreenNetRoom.h"
-            "ScreenNetSelectBase.h"
-            "ScreenNetSelectMusic.h"
-            "ScreenNetworkOptions.h")
-
-if(WITH_NETWORKING)
-  list(APPEND SMDATA_SCREEN_NET_SRC "ScreenSMOnlineLogin.cpp")
-  list(APPEND SMDATA_SCREEN_NET_HPP "ScreenSMOnlineLogin.h")
-endif()
-
-source_group("Screens\\\\Network"
-             FILES
-             ${SMDATA_SCREEN_NET_SRC}
-             ${SMDATA_SCREEN_NET_HPP})
-
 list(APPEND SMDATA_ALL_SCREENS_SRC
             ${SMDATA_SCREEN_GAMEPLAY_SRC}
             ${SMDATA_SCREEN_OPTION_SRC}
-            ${SMDATA_SCREEN_NET_SRC}
             ${SMDATA_SCREEN_REST_SRC})
 
 list(APPEND SMDATA_ALL_SCREENS_HPP
             ${SMDATA_SCREEN_GAMEPLAY_HPP}
             ${SMDATA_SCREEN_OPTION_HPP}
-            ${SMDATA_SCREEN_NET_HPP}
             ${SMDATA_SCREEN_REST_HPP})