remov typing from config file

This was done because this is the only file that was using typed Racket.
The other portions of the program do not typed (but see #5), so the
config file typing was slowing the program execution without providing
significant improvements in development or ensuring program correctness.

config.rkt.example

@@ -1,10 +1,8 @@
-#lang typed/racket/base
+#lang racket/base
 
 (provide dbloc
          PIname)
 
-(: dbloc String)
 (define dbloc "/path/to/database")
 
-(: PIname String)
 (define PIname "Lastname")