writeANSI, writeASCII: do not reset size

We're reseting size to 1 in writeANSI and writeASCII, this may be
problematic if someone use qrencode as a library.

Let's just ignore it in ASCII/ANSI mode instead.

qrenc.c

@@ -769,11 +769,9 @@ static int writeANSI(const QRcode *qrcode, const char *outfile)
 	}
 	white_s = strlen(white);
 
-	size = 1;
-
 	fp = openFile(outfile);
 
-	realwidth = (qrcode->width + margin * 2) * size;
+	realwidth = qrcode->width + margin * 2;
 	buffer_s = (realwidth * white_s) * 2;
 	buffer = malloc(buffer_s);
 	if (buffer == NULL) {
@@ -958,8 +956,6 @@ static int writeASCII(const QRcode *qrcode, const char *outfile, int invert)
 		white = '#';
 	}
 
-	size = 1;
-
 	fp = openFile(outfile);
 
 	realwidth = (qrcode->width + margin * 2) * 2;