[interpreter] Remove junk in README

Author: rossberg

interpreter/README.md

@@ -309,7 +309,6 @@ script: <cmd>*
 cmd:
   <module>                                   ;; define, validate, and initialize module
   ( register <string> <name>? )              ;; register module for imports
-module with given failure string
   <action>                                   ;; perform action and print results
   <assertion>                                ;; assert result of an action
   <meta>                                     ;; meta command