--- micropython-1.9.1/unix/mpconfigport.mk
+++ micropython-1.9.1/unix/mpconfigport.mk
@@ -9,7 +9,7 @@
 MICROPY_USE_READLINE = 1
 
 # btree module using Berkeley DB 1.xx
-MICROPY_PY_BTREE = 1
+MICROPY_PY_BTREE = 0
 
 # _thread module using pthreads
 MICROPY_PY_THREAD = 1
@@ -24,8 +24,8 @@
 MICROPY_PY_FFI = 1
 
 # ussl module requires axtls
-MICROPY_PY_USSL = 1
-MICROPY_SSL_AXTLS = 1
+MICROPY_PY_USSL = 0
+MICROPY_SSL_AXTLS = 0
 MICROPY_SSL_MBEDTLS = 0
 
 # jni module requires JVM/JNI