perf: Only do memory allocation when zero coin is found (backport #10…

…339) (#10361)

* perf: Only do memory allocation when zero coin is found (#10339)

## Description

Closes: #10333

Added a loop that checks for zero coins before making any memory allocations. If no zero coins are found, just return the `coins` slice as is. If a zero coin is found, then allocate the new array, stop looking for the first zero, and restart the loop to "remove" the 0's.

CHANGELOG.md

@@ -41,6 +41,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * [\#10262](https://github.com/cosmos/cosmos-sdk/pull/10262) Remove unnecessary logging in `x/feegrant` simulation.
 * [\#10327](https://github.com/cosmos/cosmos-sdk/pull/10327) Add null guard for possible nil `Amount` in tx fee `Coins`
+* [\#10339](https://github.com/cosmos/cosmos-sdk/pull/10339) Improve performance of `removeZeroCoins` by only allocating memory when necessary
 
 ### Bug Fixes