Continuation of PR #1040 - code cleanup and comments

- remove unused errors from Kicker and Taker actions libraries
- improve natspec with revert error on CRA

src/libraries/external/KickerActions.sol

@@ -96,8 +96,6 @@ library KickerActions {
     error AuctionActive();
     error BorrowerOk();
     error InsufficientLiquidity();
-    error InsufficientLP();
-    error InvalidAmount();
     error NoReserves();
     error PriceBelowLUP();
     error ReserveAuctionTooSoon();
@@ -210,6 +208,7 @@ library KickerActions {
      *  @dev    update `reserveAuction.kicked` timestamp state
      *  @dev    === Reverts on ===
      *  @dev    no reserves to claim `NoReserves()`
+     *  @dev    5 days not passed `ReserveAuctionTooSoon()`
      *  @dev    === Emit events ===
      *  @dev    - `KickReserveAuction`
      */

src/libraries/external/TakerActions.sol

@@ -117,9 +117,7 @@ library TakerActions {
     error InsufficientCollateral();
     error InvalidAmount();
     error NoAuction();
-    error NoReserves();
     error NoReservesAuction();
-    error ReserveAuctionTooSoon();
 
     /***************************/
     /***  External Functions ***/
@@ -273,7 +271,7 @@ library TakerActions {
      *  @dev    === Write state ===
      *  @dev    decrement `reserveAuction.unclaimed` accumulator
      *  @dev    === Reverts on ===
-     *  @dev    not kicked or `72` hours didn't pass `NoReservesAuction()`
+     *  @dev    not kicked or `72` hours passed `NoReservesAuction()`
      *  @dev    0 take amount or 0 AJNA burned `InvalidAmount()`
      *  @dev    === Emit events ===
      *  @dev    - `ReserveAuction`