fix: remove redundant fallback to DEPLOYER_PRIVATE_KEY in Hardhat configuration

Author: gfournierPro

packages/sharing-smart-contract/hardhat.config.cjs

@@ -39,7 +39,6 @@ module.exports = {
         env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
         env.ADMIN_PRIVATE_KEY ||
-          env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
       ],
     },
@@ -50,7 +49,6 @@ module.exports = {
         env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
         env.ADMIN_PRIVATE_KEY ||
-          env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
       ],
       blockGasLimit: 8_000_000,
@@ -62,7 +60,6 @@ module.exports = {
         env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
         env.ADMIN_PRIVATE_KEY ||
-          env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
       ],
       blockGasLimit: 30_000_000,
@@ -74,7 +71,6 @@ module.exports = {
         env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
         env.ADMIN_PRIVATE_KEY ||
-          env.DEPLOYER_PRIVATE_KEY ||
           '0x0000000000000000000000000000000000000000000000000000000000000000',
       ],
       blockGasLimit: 30_000_000,