Remove import comment

Author: vanbroup

pdfpasswd/main.go

@@ -4,7 +4,7 @@
 
 // Pdfpasswd searches for the password for an encrypted PDF
 // by trying all strings over a given alphabet up to a given length.
-package main // import "rsc.io/pdf/pdfpasswd"
+package main
 
 import (
 	"flag"