CI: remove redundant TESTS_VALGRIND_UNWIND variable

It's set in our CI scripts to 0 by default, it's unnecessary to duplicate it.

Author: lukaszstolarczuk

.github/workflows/gha.yml

@@ -34,8 +34,8 @@ jobs:
                  "TYPE=debug OS=ubuntu OS_VER=20.04 COVERAGE=1",
                  "TYPE=release OS=fedora OS_VER=34",
                  "TYPE=release OS=ubuntu OS_VER=20.04",
-                 "TYPE=valgrind OS=ubuntu OS_VER=20.04 TESTS_VALGRIND_UNWIND=0",
-                 "TYPE=memcheck_drd OS=ubuntu OS_VER=20.04 TESTS_VALGRIND_UNWIND=0",
+                 "TYPE=valgrind OS=ubuntu OS_VER=20.04",
+                 "TYPE=memcheck_drd OS=ubuntu OS_VER=20.04",
                  "TYPE=package OS=fedora OS_VER=34",
                  "TYPE=package OS=ubuntu OS_VER=20.04"]
     steps:

.github/workflows/weekly.yml

@@ -28,8 +28,8 @@ jobs:
                  "TYPE=debug OS=ubuntu OS_VER=20.04 TESTS_UBSAN=1 TESTS_PMREORDER=0",
                  "TYPE=debug OS=fedora OS_VER=rawhide TESTS_ASAN=1 TESTS_PMREORDER=0",
                  "TYPE=debug OS=fedora OS_VER=rawhide TESTS_UBSAN=1 TESTS_PMREORDER=0",
-                 "TYPE=valgrind OS=fedora OS_VER=rawhide TESTS_PMREORDER=0 TESTS_VALGRIND_UNWIND=0",
-                 "TYPE=memcheck_drd OS=fedora OS_VER=rawhide TESTS_PMREORDER=0 TESTS_VALGRIND_UNWIND=0",
+                 "TYPE=valgrind OS=fedora OS_VER=rawhide TESTS_PMREORDER=0",
+                 "TYPE=memcheck_drd OS=fedora OS_VER=rawhide TESTS_PMREORDER=0",
                  "TYPE=package OS=fedora OS_VER=34",
                  "TYPE=package OS=fedora OS_VER=rawhide TESTS_PMREORDER=0",
                  "TYPE=package OS=ubuntu OS_VER=devel"]