cmake: removed unused code

CMakeLists.txt

@@ -2508,19 +2508,6 @@ elseif(VITA)
       SceProcessmgr_stub
       m
     )
-    if(HAVE_VITA_PIB)
-        list(PREPEND SDL_EXTRA_LIBS
-          pib
-          libScePiglet_stub
-          SceShaccCg_stub
-          taihen_stub
-        )
-    endif()
-    if(HAVE_VITA_PVR)
-        list(PREPEND SDL_EXTRA_LIBS
-          SceIme_stub
-        )
-    endif()
   endif()
 
   set(HAVE_ARMSIMD TRUE)