Revert "infra/helper: persist /root directory via bind mount." (#1133)

* Revert "[Envoy] Add project. (#1130)"

This reverts commit d0fc020.

* Revert "Fix Skia compile (#1132)"

This reverts commit 4bf9e7f.

* Revert "Propose graphics magick for inclusion in OSS-Fuzz (#1131)"

This reverts commit cb277cc.

* Revert "[json-c] Add project (#1123)"

This reverts commit 31b0046.

* Revert "[infra] Update upload URL timeout to be the same as build timeout (#1112)"

This reverts commit 9215296.

* Revert "infra/helper: persist /root directory via bind mount. (#1125)"

This reverts commit b77745a.

infra/helper.py

@@ -309,7 +309,6 @@ def build_fuzzers(args):
         '%s:/src/%s' % (_get_absolute_path(args.source_path), args.project_name)
     ]
   command += [
-      '-v', '%s:/root' % os.path.join(BUILD_DIR, 'root', project_name),
       '-v', '%s:/out' % os.path.join(BUILD_DIR, 'out', project_name),
       '-v', '%s:/work' % os.path.join(BUILD_DIR, 'work', project_name),
       '-t', 'gcr.io/oss-fuzz/%s' % project_name