Remove unused MEM_MAX_ACCESS_SIZE constant (#574)

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src/fuel-vm/index.md

@@ -22,7 +22,6 @@ This document provides the specification for the Fuel Virtual Machine (FuelVM).
 | name                    | type     | value   | note                                    |
 |-------------------------|----------|---------|-----------------------------------------|
 | `CONTRACT_MAX_SIZE`     | `uint64` |         | Maximum contract size, in bytes.        |
-| `MEM_MAX_ACCESS_SIZE`   | `uint64` |         | Maximum memory access size, in bytes.   |
 | `VM_MAX_RAM`            | `uint64` | `2**26` | 64 MiB.                                 |
 | `MESSAGE_MAX_DATA_SIZE` | `uint64` |         | Maximum size of message data, in bytes. |