guile: remove support for guile < 2.0

gnucash/report/test/test-load-report-module.scm

@@ -1,8 +1,6 @@
 (debug-enable 'backtrace)
 
 (debug-set! stack 500000)
-(if (< (string->number (major-version)) 2)
-    (debug-set! maxdepth 100000))
 
 (display "  testing report module load ... ")
 (setenv "GNC_UNINSTALLED" "1")

libgnucash/app-utils/gettext.scm

@@ -32,10 +32,6 @@
   (syntax-rules ()
     ((_ x) x)))
 
-
-(if (< (string->number (major-version)) 2)
-    (export-syntax N_))
-
 (export gnc:gettext)
 (export _)
 (export N_)

libgnucash/gnc-module/test/test-gnc-module-scm-dynload.scm

@@ -1,5 +1,2 @@
-(if (or (string=? (version) "1.3")
-        (string=? (version) "1.3.4"))
-    (dynamic-link "libgnc-module.so")
-    (dynamic-link "libgnc-module"))
+(dynamic-link "libgnc-module")
 (exit 0)

libgnucash/scm/utilities.scm

@@ -21,9 +21,8 @@
 ;; In guile 2.0 we get nearly 7500 of them loading the scheme files.
 ;; This is the default value for auto-compilation-options without "unbound-variable".
 ;; See module/ice-9/boot-9.scm  */
-(if (>= (string->number (major-version)) 2)
-    (set! %auto-compilation-options 
-          '(#:warnings (arity-mismatch format duplicate-case-datum bad-case-datum))))
+(set! %auto-compilation-options
+  '(#:warnings (arity-mismatch format duplicate-case-datum bad-case-datum)))
 
 (use-modules (gnucash core-utils))