[Gpr_To_Absl_Logging] Disable absl logging (#36546)

diff --git a/src/core/lib/config/config_vars.cc b/src/core/lib/config/config_vars.cc
index b01070f..d2b126d 100644
--- a/src/core/lib/config/config_vars.cc
+++ b/src/core/lib/config/config_vars.cc
@@ -95,7 +95,7 @@
           FLAGS_grpc_not_use_system_ssl_roots, "GRPC_NOT_USE_SYSTEM_SSL_ROOTS",
           overrides.not_use_system_ssl_roots, false)),
       absl_logging_(LoadConfig(FLAGS_grpc_absl_logging, "GRPC_ABSL_LOGGING",
-                               overrides.absl_logging, true)),
+                               overrides.absl_logging, false)),
       dns_resolver_(LoadConfig(FLAGS_grpc_dns_resolver, "GRPC_DNS_RESOLVER",
                                overrides.dns_resolver, "")),
       verbosity_(LoadConfig(FLAGS_grpc_verbosity, "GRPC_VERBOSITY",
diff --git a/src/core/lib/config/config_vars.yaml b/src/core/lib/config/config_vars.yaml
index 3496ee6..f381132 100644
--- a/src/core/lib/config/config_vars.yaml
+++ b/src/core/lib/config/config_vars.yaml
@@ -128,6 +128,6 @@
     ECDHE-RSA-AES256-GCM-SHA384"
 - name: absl_logging
   type: bool
-  default: true
+  default: false
   description:
     Use absl logging from within gpr_log.