http: Ensure REQUEST_URI immutability

Previously, the REQUEST_URI within Unit could be modified,
for example, during uri rewriting. We decide to make $request_uri
immutable and pass constant REQUEST_URI to applications.
Based on the new requirement, we remove `r->target` rewriting
in the rewrite module.

Closes: https://github.com/nginx/unit/issues/916
Reviewed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Zhidao HONG <z.hong@f5.com>

0 files changed, 0 insertions, 0 deletions