build_manager: allow remote unpacking when unpacking everything (#4473)

Now that we are lazily checking for fuzzing targets, it makes sense to
allow remote unpacking even when unpacking the full archive.
Furthermore, it seems that remote unpacking performances are much higher
than local unpacking on CF bots, so this might improve overall
performances of the build_manager.

src/clusterfuzz/_internal/build_management/build_manager.py

@@ -485,12 +485,11 @@ def _open_build_archive(self, base_build_dir: str, build_dir: str,
     # if the HTTP URL is compatible with remote unzipping.
     allow_unpack_over_http = environment.get_value(
         'ALLOW_UNPACK_OVER_HTTP', default_value=False)
-    can_unzip_over_http = (
-        allow_unpack_over_http and not self._unpack_everything and
-        http_build_url and
+    can_unpack_over_http = (
+        allow_unpack_over_http and http_build_url and
         build_archive.unzip_over_http_compatible(http_build_url))
 
-    if not can_unzip_over_http:
+    if not can_unpack_over_http:
       return self._download_and_open_build_archive(base_build_dir, build_dir,
                                                    build_url)
     # We do not emmit a metric for build download time, if using http