Disable use_jumbo_build for now

Example: widevine_cmdm_compoennt_installer.cc is included in a generated jumbo .cc file via a relative path.

Fix brave/brave-browser#411

It will be re-added eventually in brave/brave-browser#410

build/commands/lib/config.js

@@ -51,7 +51,9 @@ Config.prototype.buildArgs = function () {
   let args = {
     safe_browsing_mode: 1,
     root_extra_deps: [ "//brave" ],
-    use_jumbo_build: !this.officialBuild,
+    // TODO: Re-enable when chromium_src overrides work for files in relative
+    // paths like widevine_cmdm_compoennt_installer.cc
+    // use_jumbo_build: !this.officialBuild,
     is_component_build: this.buildConfig !== 'Release',
     proprietary_codecs: true,
     ffmpeg_branding: "Chrome",