Remove test_clang_opt check

The component functions in all.sh will be listed using
compgen instead of sed so this check is not needed.

Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 21f5371..f1da9d2 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -195,13 +195,6 @@
     # they are defined.
     ALL_COMPONENTS=$(sed -n 's/^ *component_\([0-9A-Z_a-z]*\) *().*/\1/p' <"$0")
 
-    # For Linux platforms we run latest/earliest versions of clang and the
-    # test_clang_opt function is only for FreeBSD. This condition removes
-    # test_clang_opt element from the ALL_COMPONENTS array for Linux.
-    if [[ $(uname) == "Linux" ]]; then
-        ALL_COMPONENTS=( "${ALL_COMPONENTS[@]/test_clang_opt}" )
-    fi
-
     # Exclude components that are not supported on this platform.
     SUPPORTED_COMPONENTS=
     for component in $ALL_COMPONENTS; do