Remove/replace some dependencies on scheme-lib

original commit: dfe51373dd

pkgs/net-pkgs/net-test/info.rkt

@@ -13,5 +13,4 @@
                      "net-lib"
                      "racket-test"
                      "rackunit-lib"
-                     "scheme-lib"
                      "web-server-lib"))

pkgs/net-pkgs/net-test/tests/net/cgi.rkt

@@ -1,4 +1,4 @@
-#lang scheme
+#lang racket
 (require net/cgi (only-in net/uri-codec current-alist-separator-mode)
          tests/eli-tester)
 

pkgs/net-pkgs/net-test/tests/net/cookie.rkt

@@ -1,4 +1,4 @@
-#lang scheme
+#lang racket
 (require net/cookie tests/eli-tester)
 
 ;; cookie tests --- JBM, 2006-12-01

pkgs/net-pkgs/net-test/tests/net/encoders.rkt

@@ -1,4 +1,4 @@
-#lang scheme
+#lang racket
 (require net/base64 net/qp tests/eli-tester)
 
 (define tricky-strings
@@ -83,7 +83,7 @@
 
 #|
 Use this to compare base64 encode/decode against the unix utilities
-(require net/base64 scheme/system)
+(require net/base64 racket/system)
 (define (base64-encode* bstr)
   (let ([o (open-output-bytes)])
      (parameterize ([current-output-port o]

pkgs/net-pkgs/net-test/tests/net/head.rkt

@@ -1,4 +1,4 @@
-#lang scheme
+#lang racket
 (require net/head tests/eli-tester)
 
 ;; a few tests of head.rkt -- JBC, 2006-07-31

pkgs/net-pkgs/net-test/tests/net/uri-codec.rkt

@@ -1,4 +1,4 @@
-#lang scheme
+#lang racket
 (require net/uri-codec tests/eli-tester)
 
 (provide tests)