Meta: Remove references to Userland/Libraries/LibELF/exec_elf.h

Author: https://github.com/bcoles
Commit: 3c4dc5cb11
Pull-request: https://github.com/SerenityOS/serenity/pull/6470

Meta/lint-clang-format.sh

@@ -12,8 +12,7 @@ if [ "$#" -eq "1" ]; then
             '*.h' \
             ':!:Base' \
             ':!:Kernel/FileSystem/ext2_fs.h' \
-            ':!:Userland/Libraries/LibC/syslog.h' \
-            ':!:Userland/Libraries/LibELF/exec_elf.h'
+            ':!:Userland/Libraries/LibC/syslog.h'
     )
 else
     files=()