Don't override default AR and RANLIB without LTO

`ar` is not always available, and when it is, it's not always correct, e.g. during cross-compilation.

https://bugs.gentoo.org/732096

CMakeLists.txt

@@ -421,12 +421,6 @@ if(ENABLE_LTO)
 	find_program(LTO_RANLIB NAMES gcc-ranlib)
 	set(CMAKE_AR "${LTO_AR}" CACHE STRING "Supports LTO" FORCE)
 	set(CMAKE_RANLIB "${LTO_RANLIB}" CACHE STRING "Supports LTO" FORCE)
-else()
-	MESSAGE("Using ar, ranlib, and default linker")
-	find_program(NON_LTO_AR NAMES ar)
-	find_program(NON_LTO_RANLIB NAMES ranlib)
-	set(CMAKE_AR "${NON_LTO_AR}" CACHE STRING "Does not support LTO" FORCE)
-	set(CMAKE_RANLIB "${NON_LTO_RANLIB}" CACHE STRING "Does not support LTO" FORCE)
 endif()
 MARK_AS_ADVANCED(LTO_AR LTO_RANLIB NON_LTO_AR NON_LTO_RANLIB)