ci: enable LeakSanitizer

Change-Id: I097be7743f8541bf06bae1449449a903552ef3f6
diff --git a/.jenkins.d/20-tests.sh b/.jenkins.d/20-tests.sh
index 01bf070..00df3e5 100755
--- a/.jenkins.d/20-tests.sh
+++ b/.jenkins.d/20-tests.sh
@@ -31,7 +31,6 @@
 }
 
 ASAN_OPTIONS="color=always"
-ASAN_OPTIONS+=":detect_leaks=false"
 ASAN_OPTIONS+=":detect_stack_use_after_return=true"
 ASAN_OPTIONS+=":check_initialization_order=true"
 ASAN_OPTIONS+=":strict_init_order=true"