revert heap size change, not needed

Author: noahp

prj.conf

@@ -99,8 +99,8 @@ CONFIG_MEMFAULT_COREDUMP_COLLECT_TASKS_REGIONS=n
 
 # Memfault's http client needs a small amount of heap. Zephyr requires a minimum
 # heap size for the applied configuration, so select that here to prevent a
-# build time message. ESP32 WiFi adapter requires additional heap for buffers.
-CONFIG_HEAP_MEM_POOL_SIZE=98304
+# build time message
+CONFIG_HEAP_MEM_POOL_SIZE=52224
 CONFIG_SYS_HEAP_RUNTIME_STATS=y
 CONFIG_SHELL_STACK_SIZE=4096
 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048