Simplify patch

indexers-v2/patches/@subsquid+squid-gen-evm+1.2.1.patch

@@ -1,27 +1,16 @@
 diff --git a/node_modules/@subsquid/squid-gen-evm/lib/core.js b/node_modules/@subsquid/squid-gen-evm/lib/core.js
-index 2839b6f..823fce0 100644
+index 2839b6f..902f4eb 100644
 --- a/node_modules/@subsquid/squid-gen-evm/lib/core.js
 +++ b/node_modules/@subsquid/squid-gen-evm/lib/core.js
-@@ -28,6 +28,11 @@ class CoreCodegen {
-         this.printImports();
-         this.out.line();
-         let targetPrinter = this.getTargetPrinter();
-+        this.out.line(`import { loadNetworkConfig } from './config'`);
-+        this.out.line(`const networkName = process.env.NETWORK_NAME || 'arbitrum_mainnet'`);
-+        this.out.line(`const configName = process.env.CONFIG_NAME || 'default'`);
-+        this.out.line(`const config = loadNetworkConfig(networkName)`);
-+        this.out.line(`const rangeTo = config.configs[configName].range.to`);
-         this.out.line(`processor.run(db, async (ctx) => {`);
-         this.out.indentation(() => {
-             targetPrinter.printPreBatch();
-@@ -38,6 +43,13 @@ class CoreCodegen {
+@@ -38,6 +38,14 @@ class CoreCodegen {
                      `new Date(block.header.timestamp)`,
                  ]);
                  this.out.line();
-+                this.out.block(`if (typeof rangeTo !== 'undefined' && block.header.height >= Number(rangeTo))`, () => {
++                let rangeTo = this.options.contracts[0].range.to;
++                this.out.block(`if (typeof ${rangeTo} !== 'undefined' && block.header.height >= Number(${rangeTo}))`, () => {
 +                    this.out.line(`ctx.store.setForceFlush(true)`);
 +                });
-+                this.out.block(`else if (typeof rangeTo === 'undefined')`, () => {
++                this.out.block(`else if (typeof ${rangeTo} === 'undefined')`, () => {
 +                    this.out.line(`ctx.store.setForceFlush(true)`);
 +                });
 +                this.out.line();