Bug 1874363 - [devtools] Remove build-debugger mapping mechanism. r=devtools-reviewers,ochameau.

Differential Revision: https://phabricator.services.mozilla.com/D198422

devtools/client/shared/build/build-debugger.js

@@ -8,10 +8,6 @@ const Babel = require("./babel");
 const fs = require("fs");
 const _path = require("path");
 
-const mappings = {};
-
-const mappingValues = Object.values(mappings);
-
 function isRequire(t, node) {
   return node && t.isCallExpression(node) && node.callee.name == "require";
 }
@@ -53,12 +49,6 @@ function transformMC({ types: t }) {
           return;
         }
 
-        // Handle require() to files mapped to other mozilla-central files.
-        if (Object.keys(mappings).includes(value)) {
-          path.replaceWith(t.stringLiteral(mappings[value]));
-          return;
-        }
-
         // Handle implicit index.js requires:
         // in a node environment, require("my/folder") will automatically load
         // my/folder/index.js if available. The DevTools load does not handle
@@ -71,7 +61,7 @@ function transformMC({ types: t }) {
           !exists &&
           !value.endsWith("index") &&
           !value.endsWith(".jsm") &&
-          !(value.startsWith("devtools") || mappingValues.includes(value))
+          !value.startsWith("devtools")
         ) {
           value = `${value}/index`;
           path.replaceWith(t.stringLiteral(value));
@@ -134,6 +124,6 @@ module.exports = function (filePath) {
   return [
     "proposal-class-properties",
     "transform-modules-commonjs",
-    ["transform-mc", { mappings, filePath }],
+    ["transform-mc", { filePath }],
   ];
 };