remove eth_cancelPrivateTransaction from compute units doc (#739)

Author: AlvaroLuken

fern/api-reference/pricing-resources/pricing/compute-unit-costs.mdx

@@ -162,7 +162,6 @@ We want builders to be able to use as much of the NFT API as they need without w
 | ----------------------------------------- | ---- |
 | alchemy\_sendGasOptimizedTransaction      | 2500 |
 | alchemy\_getGasOptimizedTransactionStatus | 25   |
-| eth\_cancelPrivateTransaction             | 250  |
 | alchemy\_simulateAssetChanges             | 2500 |
 | alchemy\_simulateExecution                | 2500 |