Merge bitcoin-core/secp256k1#1405: ci: Drop no longer needed workaround

ef9fe95 ci: Drop no longer needed workaround (Hennadii Stepanov)

Pull request description:

  The https://sourceware.org/bugzilla/show_bug.cgi?id=27008 bug has been resolved since libc 2.33.

  Debian Bookworm has [libc](https://packages.debian.org/bookworm/libc6) 2.36.

  I've separated this change from moving CI tasks to GitHub Actions intentionally.

ACKs for top commit:
  real-or-random:
    ACK ef9fe95

Tree-SHA512: 4e8ce1232fcb581fa4700da75e5f63ff3da359416e5c5c1966f6aae079219fd697554db03d0b1729ea62cca42aae74bd36621a85d6ec7e4ee18e2c20b879cfa6

.cirrus.yml

@@ -128,8 +128,6 @@ task:
     ELLSWIFT: yes
     CTIMETESTS: no
   test_script:
-    # https://sourceware.org/bugzilla/show_bug.cgi?id=27008
-    - rm /etc/ld.so.cache
     - ./ci/ci.sh
   << : *CAT_LOGS