Update RELEASE_NOTES to reflect changes in functionality

Removed 'fmod' from the list of functions enabling integer outputs for integer inputs.

Author: FrancescAlted

RELEASE_NOTES.rst

@@ -15,7 +15,7 @@ Changes from 2.12.1 to 2.13.0
  * Bitwise operators (and, or, not, xor): `&, |, ~, ^`
  * New binary arithmetic operator for floor division: `//`
  * New functions: `signbit`, `hypot`, `copysign`, `nextafter`, `maximum`, `minimum`, `log2`, `trunc`, `round` and `sign`.
- * Also enables integer outputs for integer inputs for `abs`, `fmod`, `copy`, `ones_like`, `sign` and `round`.
+ * Also enables integer outputs for integer inputs for `abs`, `copy`, `ones_like`, `sign` and `round`.
 
  Thanks to Luke Shaw for the contributions.