Deprecated environment variables

Variable	Type	Description	Compulsoriness	Default value	Example value	Deprecated in version	Comment
NEXT_PUBLIC_IS_OPTIMISTIC_L2_NETWORK	`boolean`	Set to true for optimistic L2 solutions	Required	-	`true`	v1.24.0	Replaced by NEXT_PUBLIC_ROLLUP_TYPE
NEXT_PUBLIC_IS_ZKEVM_L2_NETWORK	`boolean`	Set to true for zkevm L2 solutions	Required	-	`true`	v1.24.0	Replaced by NEXT_PUBLIC_ROLLUP_TYPE
NEXT_PUBLIC_OPTIMISTIC_L2_WITHDRAWAL_URL	`string`	URL for optimistic L2 -> L1 withdrawals	Required	-	`https://app.optimism.io/bridge/withdraw`	v1.24.0	Renamed to NEXT_PUBLIC_ROLLUP_L2_WITHDRAWAL_URL
NEXT_PUBLIC_L1_BASE_URL	`string`	Blockscout base URL for L1 network	Required	-	`'http://eth-goerli.blockscout.com'`	v1.24.0	Renamed to NEXT_PUBLIC_ROLLUP_L1_BASE_URL
NEXT_PUBLIC_HOMEPAGE_SHOW_GAS_TRACKER	`boolean`	Set to false if network doesn't have gas tracker	-	`true`	`false`	v1.25.0	Replaced by NEXT_PUBLIC_GAS_TRACKER_ENABLED
NEXT_PUBLIC_NETWORK_GOVERNANCE_TOKEN_SYMBOL	`string`	Network governance token symbol	-	-	`GNO`	v1.29.0	Replaced by NEXT_PUBLIC_NETWORK_SECONDARY_COIN_SYMBOL
NEXT_PUBLIC_SWAP_BUTTON_URL	`string`	Application ID in the marketplace or website URL	-	-	`uniswap`	v1.31.0	Replaced by NEXT_PUBLIC_DEFI_DROPDOWN_ITEMS