Revert "fix: Update legacy-ecs package (#886)" (#910)

This reverts commit f770b3e.

packages/@dcl/dcl-rollup/ecs.config.ts

@@ -1,8 +1,8 @@
 import resolve from '@rollup/plugin-node-resolve'
 import { RollupOptions } from 'rollup'
-import typescript from '@rollup/plugin-typescript'
+import { terser } from 'rollup-plugin-terser'
+import typescript from 'rollup-plugin-typescript2'
 import commonjs from '@rollup/plugin-commonjs'
-import terser from '@rollup/plugin-terser'
 import { sys } from 'typescript'
 import { apiExtractor } from './api-extractor'
 
@@ -17,7 +17,27 @@ console.assert(packageJson.main, 'package.json .main must be present')
 console.assert(packageJson.typings, 'package.json .typings must be present')
 
 const plugins = [
-  typescript(),
+  typescript({
+    verbosity: 2,
+    clean: true,
+    tsconfigDefaults: {
+      include: ['src'],
+      compilerOptions: {
+        module: 'ESNext',
+        sourceMap: true,
+        declaration: true
+      }
+    },
+    tsconfig: 'tsconfig.json',
+    tsconfigOverride: {
+      declaration: true,
+      declarationMap: true,
+      sourceMap: false,
+      inlineSourceMap: true,
+      inlineSources: true
+    },
+    typescript: require('typescript')
+  }),
   resolve({
     browser: true,
     preferBuiltins: false
@@ -39,7 +59,7 @@ const config: RollupOptions = {
   output: [
     {
       file: packageJson.main,
-      format: 'es',
+      format: 'iife',
       name: 'self',
       extend: true,
       sourcemap: 'inline'

packages/@dcl/dcl-rollup/libs.config.ts

@@ -1,6 +1,6 @@
 import resolve from '@rollup/plugin-node-resolve'
 import commonjs from '@rollup/plugin-commonjs'
-import terser from '@rollup/plugin-terser'
+import { terser } from 'rollup-plugin-terser'
 import typescript from 'rollup-plugin-typescript2'
 import { sys } from 'typescript'
 import { apiExtractor } from './api-extractor'