remove: umami web analytics integration

Stopped tracking visitors because I realized that:

1. It's no necessary for personal blogs to analyze user behaviors,
2. Checking pageviews on a daily basis really messed up my mental health.

1 files changed, 0 insertions, 1 deletions

diff --git a/static/_headers b/static/_headers
index a96d80e5..2ef3aaa3 100644
--- a/static/_headers
+++ b/static/_headers
@@ -2,7 +2,6 @@
   Content-Security-Policy:
     script-src 'self'
       https://remark.guhub.cn
-      https://umami.guhub.cn
       https://static.cloudflareinsights.com
       'unsafe-inline'
       'unsafe-eval';