ice-9 syncase now deprecated, woo

Remove #:use-module (ice-9 syncase) from lots of places, as it's no
longer needed.

module/ice-9/null.scm

@@ -18,7 +18,6 @@
 ;;;; The null environment - only syntactic bindings
 
 (define-module (ice-9 null)
-  :use-module (ice-9 syncase)
   :re-export-syntax (define quote lambda if set!
 	
 		     cond case and or

module/ice-9/occam-channel.scm

@@ -17,7 +17,6 @@
 ;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
 (define-module (ice-9 occam-channel)
-  #:use-syntax (ice-9 syncase)
   #:use-module (oop goops)
   #:use-module (ice-9 threads)
   #:export-syntax (alt

module/language/scheme/amatch.scm

@@ -1,7 +1,5 @@
 (define-module (language scheme amatch)
-  #:use-module (ice-9 syncase)
-  #:export (amatch apat))
-;; FIXME: shouldn't have to export apat...
+  #:export (amatch))
 
 ;; This is exactly the same as pmatch except that it unpacks annotations
 ;; as needed.

module/language/scheme/expand.scm

@@ -23,7 +23,6 @@
   #:use-module (language scheme amatch)
   #:use-module (ice-9 expand-support)
   #:use-module (ice-9 optargs)
-  #:use-module ((ice-9 syncase) #:select (sc-macro))
   #:use-module ((system base compile) #:select (syntax-error))
   #:export (expand *expand-table* define-scheme-expander))
 

module/srfi/srfi-11.scm

@@ -37,7 +37,6 @@
 ;;; Code:
 
 (define-module (srfi srfi-11)
-  :use-module (ice-9 syncase)
   :export-syntax (let-values let*-values))
 
 (cond-expand-provide (current-module) '(srfi-11))

module/srfi/srfi-39.scm

@@ -35,7 +35,6 @@
 ;;; Code:
 
 (define-module (srfi srfi-39)
-  #:use-module (ice-9 syncase)
   #:use-module (srfi srfi-16)
 
   #:export (make-parameter)

module/system/base/pmatch.scm

@@ -1,5 +1,4 @@
 (define-module (system base pmatch)
-  #:use-module (ice-9 syncase)
   #:export (pmatch))
 ;; FIXME: shouldn't have to export ppat...