Remove CMAKE_DL_LIBS for Rav1e (#3087)

It is already in Rust_CARGO_TARGET_LINK_NATIVE_LIBS

cmake/Modules/Findrav1e.cmake

diff --git a/cmake/Modules/Findrav1e.cmake b/cmake/Modules/Findrav1e.cmake
index d855754..f0915c0 100644
--- a/cmake/Modules/Findrav1e.cmake
+++ b/cmake/Modules/Findrav1e.cmake
@@ -63,8 +63,6 @@
         target_include_directories(rav1e::rav1e INTERFACE ${RAV1E_INCLUDE_DIR})
         if(WIN32)
             target_link_libraries(rav1e::rav1e INTERFACE ntdll userenv ws2_32 bcrypt)
-        elseif(UNIX AND NOT APPLE)
-            target_link_libraries(rav1e::rav1e INTERFACE ${CMAKE_DL_LIBS}) # for backtrace
         endif()
     endif()
 endif()

cmake/Modules/LocalRav1e.cmake

diff --git a/cmake/Modules/LocalRav1e.cmake b/cmake/Modules/LocalRav1e.cmake
index f219262..641b36f 100644
--- a/cmake/Modules/LocalRav1e.cmake
+++ b/cmake/Modules/LocalRav1e.cmake
@@ -105,9 +105,6 @@
     add_library(rav1e::rav1e STATIC IMPORTED)
     add_dependencies(rav1e::rav1e rav1e)
     target_link_libraries(rav1e::rav1e INTERFACE "${Rust_CARGO_TARGET_LINK_NATIVE_LIBS}")
-    if(UNIX AND NOT APPLE)
-        target_link_libraries(rav1e::rav1e INTERFACE ${CMAKE_DL_LIBS}) # for backtrace
-    endif()
     target_link_options(rav1e::rav1e INTERFACE "${Rust_CARGO_TARGET_LINK_OPTIONS}")
     set_target_properties(rav1e::rav1e PROPERTIES IMPORTED_LOCATION "${RAV1E_LIB_FILENAME}" AVIF_LOCAL ON FOLDER "ext/rav1e")
     target_include_directories(rav1e::rav1e INTERFACE "${RAV1E_INCLUDE_DIR}")