remove workaround for nasty double

[pjfanning]

According to https://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ - the issue with this number was fixed in 2011. Instead of taking the hit to check for this string when parsing doubles, the code could be removed - eg for jackson v2.14.

https://www.exploringbinary.com/fpupdater-fixes-the-java-2-2250738585072012e-308-bug/

https://github.com/FasterXML/jackson-core/blob/2.14/src/main/java/com/fasterxml/jackson/core/io/NumberInput.java#L302

        // [JACKSON-486]: avoid some nasty float representations... but should it be MIN_NORMAL or MIN_VALUE?
        /* as per [JACKSON-827], let's use MIN_VALUE as it is available on all JDKs; normalized
         * only in JDK 1.6. In practice, should not really matter.
         */
        if (NASTY_SMALL_DOUBLE.equals(s)) {
            return Double.MIN_VALUE;
        }

If we proceed with #746, then maybe this change is safer.

[cowtowncoder]

Ok sounds reasonable. But just to make sure; the fix:

• Is in JDK, 1.6.x (x > 0)
• All JDK 8 (and above) versions have the fix

So in theory one might be able to find a JDK 1.6 version with the problem, use it with jackson-core -- but that seems highly unlikely.

I think I'd accept the change then. Will add just one suggestion in PR and can then merge in for 2.14.

[cowtowncoder]

Ahhh. Need to revert part of this, as jackson-databind has dependency: will mark constant as deprecated but not (yet) remove.