Remove unnecessary loop.

Loops were returning directly.

Fixes #181.

lexers/h/http.go

@@ -77,7 +77,15 @@ func (d *httpBodyContentTyper) Tokenise(options *TokeniseOptions, text string) (
 	}
 
 	return func() Token {
-		for token := it(); token != EOF; token = it() {
+		token := it()
+
+		if token == EOF {
+			if subIterator != nil {
+				return subIterator()
+			}
+			return EOF
+		}
+
 		switch {
 		case token.Type == Name && strings.ToLower(token.Value) == "content-type":
 			{
@@ -117,16 +125,7 @@ func (d *httpBodyContentTyper) Tokenise(options *TokeniseOptions, text string) (
 			}
 
 		}
-
 		return token
-		}
-
-		if subIterator != nil {
-			for token := subIterator(); token != EOF; token = subIterator() {
-				return token
-			}
-		}
-		return EOF
 
 	}, nil
 }