removed -max_request_size option

mongoose.1

@@ -82,8 +82,6 @@ Use
 as a CGI interpreter for all CGI scripts regardless script extension.
 Mongoose decides which interpreter to use by looking at
 the first line of a CGI script.  Default: "".
-.It Fl M Ar max_request_size
-Maximum HTTP request size in bytes. Default: "16384"
 .It Fl P Ar protect_uri
 Comma separated list of URI=PATH pairs, specifying that given URIs
 must be protected with respected password files. Default: ""