DefaultTableIOPlugin.guessParser: Remove dead code

* the guessParser method is currently always prefers double over float
* the float parsing lines are therefore removed since they can't be
reached

Author: frauzufall

src/main/java/org/scijava/table/DefaultTableIOPlugin.java

@@ -256,10 +256,6 @@ static Function<String, Object> guessParser(String content) {
 			Double.valueOf(content);
 			return Double::valueOf;
 		} catch(NumberFormatException ignored) {}
-		try {
-			Float.valueOf(content);
-			return Float::valueOf;
-		} catch(NumberFormatException ignored) {}
 		if(content.equalsIgnoreCase("true")||content.equalsIgnoreCase("false")) {
 			return Boolean::valueOf;
 		}