tests: Remove old '_NA' doc check code

There are no "_NA" checks remaining so kill exception code for it.
diff --git a/vk_layer_documentation_generate.py b/vk_layer_documentation_generate.py
index 71ea370..2da0cc4 100755
--- a/vk_layer_documentation_generate.py
+++ b/vk_layer_documentation_generate.py
@@ -263,9 +263,7 @@
                         detail_sections = line.split('|')
                         #print("Details elements from line %s: %s" % (line, detail_sections))
                         check_name = '%s%s' % (enum_prefix, detail_sections[3].strip())
-                        if '_NA' in check_name:
-                            # TODO : Should clean up these NA checks in the doc, skipping them for now
-                            continue
+
                         self.enum_list.append(check_name)
                         self.layer_doc_dict[layer_name][check_name] = {}
                         self.layer_doc_dict[layer_name][check_name]['summary_txt'] = detail_sections[1].strip()