BHV-17152: Changing functionality in Input.js file for making the behavioral same between Input and InputHeader when RTL is true.
Removed redundant value check. Added matching functionality to enyo.RichText.
* `this.value === '0'` is redundant since a zero in a string is already truthy.
* Removed unnecessary whitespaces (automated)

Enyo-DCO-1.1-Signed-off-by: Blake Stephens <blake.stephens@lge.com>