Remove unnecessary check for ';' in filenames

The Makefiles already assume that filenames don't contain
special characters anyway, so we don't need to check this
in generate_psa_tests.py.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/tests/scripts/generate_psa_tests.py b/tests/scripts/generate_psa_tests.py
index 16e27ee..1e5d204 100755
--- a/tests/scripts/generate_psa_tests.py
+++ b/tests/scripts/generate_psa_tests.py
@@ -715,11 +715,8 @@
     # List in a cmake list format (i.e. ';'-separated)
     if options.list_for_cmake:
         filenames = []
-        for name in sorted(generator.TARGETS):
-            if ';' in generator.filename_for(name):
-                raise ValueError('Cannot pass filename containing \';\' to cmake: ' + name)
-            filenames.append(generator.filename_for(name))
-        print(';'.join(filenames), end='')
+        print(';'.join(generator.filename_for(name)
+                       for name in sorted(generator.TARGETS)), end='')
         return
     if options.targets:
         # Allow "-" as a special case so you can run