Disable coverage calculation for olddeps build. (#11888)

We disabled coverage calculation for most of CI in #11017, but the olddeps
build uses a separate script and got forgotten.

2 files changed, 2 insertions, 1 deletions

diff --git a/.ci/scripts/test_old_deps.sh b/.ci/scripts/test_old_deps.sh

index a54aa86fbc..54ec3c8b0d 100755
--- a/.ci/scripts/test_old_deps.sh
+++ b/.ci/scripts/test_old_deps.sh
@@ -15,4 +15,4 @@ export LANG="C.UTF-8"
 # Prevent virtualenv from auto-updating pip to an incompatible version
 export VIRTUALENV_NO_DOWNLOAD=1
 
-exec tox -e py3-old,combine
+exec tox -e py3-old
diff --git a/changelog.d/11888.misc b/changelog.d/11888.misc
new file mode 100644

index 0000000000..db1c9b8bbd
--- /dev/null
+++ b/changelog.d/11888.misc
@@ -0,0 +1 @@
+Disable coverage calculation for olddeps build.