[PATCH] CI: Remove obsolete USE_SLZ=1 CI job

[Tim Duesterhus]

Using SLZ is a default, thus this build is equivalent to the "no features"
build.
---
 .github/matrix.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/matrix.py b/.github/matrix.py
index cfef53c9e..fdd76958c 100755
--- a/.github/matrix.py
+++ b/.github/matrix.py
@@ -94,7 +94,7 @@ for CC in ["gcc", "clang"]:
         }
     )
 
-    for compression in ["USE_SLZ=1", "USE_ZLIB=1"]:
+    for compression in ["USE_ZLIB=1"]:
         matrix.append(
             {
                 "name": "{}, {}, gz={}".format(
-- 
2.32.0