Clean up utils

Lots of the utils functions have been superceeded or replaced by std::
implementations, or are no longer needed because of the removal of
middlewares.


Tested:
Ran on a bmc with this implemented.  Pulled down the webui, and
observed no issues.  Code compiles and passes clang-tidy cert checks.

Change-Id: If29bb5f4ba9979912aeb2a8fa4cbd9f4e4f32006
Signed-off-by: Ed Tanous <ed@tanous.net>
diff --git a/http/app.h b/http/app.h
index ff8642d..86cebd3 100644
--- a/http/app.h
+++ b/http/app.h
@@ -17,7 +17,7 @@
 #include <utility>
 
 #define BMCWEB_ROUTE(app, url)                                                 \
-    app.template route<crow::black_magic::get_parameter_tag(url)>(url)
+    app.template route<crow::black_magic::getParameterTag(url)>(url)
 
 namespace crow
 {