Remove number support from the router

The router historically came from crow.  Crow supported wildcards of
<int>, <float>, and <double>.  bmcweb doesn't use them, nor should it in
basically any case, as we now have explicit 404 handling.

This commit removes them.  This amounts to about -450 lines of code, but
it's some of the scarier code we have, some of it existing in the
namespace "black_magic".  Reducing the brain debt for people working in
this subsystem seems worthwhile.  There is no case in the future where
we would use integer based url parameters.

Tested: Redfish service validator passes.  Should be good enough
coverage for a code removal.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I34add8df7d3486952474ca7ec3dc6be990c50ed0
diff --git a/test/http/utility_test.cpp b/test/http/utility_test.cpp
index 957c13d..6726455 100644
--- a/test/http/utility_test.cpp
+++ b/test/http/utility_test.cpp
@@ -220,17 +220,9 @@
 
 TEST(Router, ParameterTagging)
 {
-    EXPECT_EQ(6 * 6 + 6 * 3 + 2, getParameterTag("<uint><double><int>"));
-    EXPECT_EQ(1, getParameterTag("<int>"));
-    EXPECT_EQ(2, getParameterTag("<uint>"));
-    EXPECT_EQ(3, getParameterTag("<float>"));
-    EXPECT_EQ(3, getParameterTag("<double>"));
-    EXPECT_EQ(4, getParameterTag("<str>"));
-    EXPECT_EQ(4, getParameterTag("<string>"));
-    EXPECT_EQ(5, getParameterTag("<path>"));
-    EXPECT_EQ(6 * 6 + 6 + 1, getParameterTag("<int><int><int>"));
-    EXPECT_EQ(6 * 6 + 6 + 2, getParameterTag("<uint><int><int>"));
-    EXPECT_EQ(6 * 6 + 6 * 3 + 2, getParameterTag("<uint><double><int>"));
+    EXPECT_EQ(1, getParameterTag("<str>"));
+    EXPECT_EQ(1, getParameterTag("<string>"));
+    EXPECT_EQ(2, getParameterTag("<path>"));
 }
 
 TEST(URL, JsonEncoding)