ci: enable LeakSanitizer

Change-Id: I916da6506be81c44a8708923d4f7660d26863e37
diff --git a/.jenkins.d/20-tests.sh b/.jenkins.d/20-tests.sh
index b4d8ec9..816a792 100755
--- a/.jenkins.d/20-tests.sh
+++ b/.jenkins.d/20-tests.sh
@@ -25,7 +25,6 @@
 }
 
 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"