Revert "Merge pull request mixxxdj#12709 from mixxxdj/taglib_20_fail"

This reverts commit 4cfb8c4, reversing
changes made to e0322b2.

CMakeLists.txt

@@ -2940,13 +2940,6 @@ target_link_libraries(mixxx-lib PRIVATE SoundTouch::SoundTouch)
 # TagLib
 find_package(TagLib 1.11 REQUIRED)
 target_link_libraries(mixxx-lib PRIVATE TagLib::TagLib)
-if (NOT TagLib_VERSION VERSION_LESS 2.0.0)
-    message(FATAL_ERROR "Installed Taglib ${TagLib_VERSION} is not supported. Use Version >= 1.11 and < 2.0 and its development headers.")
-    # Dear package maintainer: Do not patch away this fatal error
-    # using taglib 2.0.0 will put user data at risk!!
-    # Mixxx is a complex application that needs to be adapted and tested thoroughly
-    # https://github.com/mixxxdj/mixxx/issues/12708
-endif()
 
 # Threads
 set(THREADS_PREFER_PTHREAD_FLAG ON)