syntax/parse: trim internal provides

racket/collects/syntax/parse/pre.rkt

@@ -5,8 +5,7 @@
          "private/residual.rkt")
 (provide (except-out (all-from-out "private/sc.rkt")
                      define-integrable-syntax-class
-                     syntax-parser/template
-                     parser/rhs)
+                     syntax-parser/template)
          (all-from-out "private/litconv.rkt")
          (all-from-out "private/lib.rkt")
          syntax-parse-state-ref

racket/collects/syntax/parse/private/sc.rkt

@@ -12,7 +12,6 @@
    syntax-parser
    define/syntax-parse
    syntax-parser/template
-   parser/rhs
    define-eh-alternative-set)])
 
 (provide define-syntax-class
@@ -30,5 +29,4 @@
          this-syntax
 
          syntax-parser/template
-         parser/rhs
          define-eh-alternative-set)