Update: Remove *_decrease() and *_decimate() macros and functions.

Update: Remove *_decrease() and *_decimate() macros and functions.

My general design goal is "completeness".
I originally looked at the *_decrease() or *_decimate() macros and functions as a completeness compliment of the increase() macros and functions.

There *incease_by() macros and functions as well as their compliments can already resize by 1 (or any given amount).
This means that the *_increase() (and similar) are not needed.
This puts the *_increase() in the position of an "exception" case.
As an exception case, I believe it does not necessarily need a completeness compliment.

Unlike the *_increase_by() macros and functions, the *_increase() increases by 1 or more (depending on the definition of the macro f_memory_default_allocation_step).
There is no logical compliment of this behavior for a decrease() macro/function.

Therefore, I believe it is more appropriate to remove all *_decrease() and *_decimate() macros and functions.