Remove "Can't talk right now" default text from the phone app ?

Anyone know of a trick/tweak to remove the default "Can't talk right now" text always
in front if you replay to a incoming call with a text message ?
You know, when someone calls you. You can press a button to replay with a text message instead of answering.
And you can also go in to settings-phone and where it says "call" you can put in your own text but if you look
right op over where you write your own text.
There is a text saying "Can't talk right now" this is always in front of what ever you write your self and that *****
big time Like if i write (AUTOREPLAY, Hi i can't talk right now so please send me a text message and i'll get back
to you ASAP" that will look like "Can´t talk right now AUTOREPLAY, Hi i can't talk right now so please send me a
text message and i'll get back to you ASAP" There must be a way to tweak or hack this default text somehow.
I guess you need to fuzz around in the root and system files to make this disappear. But that would be super nice.
I wish someone would make a Cydia tweak to remove this text.

Anyone who knows. Please let me know, i'm sure others have thought of this to.