micropython: remove unnecessary libc, libm, libdl dependencies

Signed-off-by: Steven Barth <steven@midlink.org>

lang/micropython/Makefile

@@ -31,7 +31,7 @@ define Package/micropython
   CATEGORY:=Languages
   TITLE:=Micro Python
   URL:=http://micropython.org
-  DEPENDS:=+libc +libffi +libdl +libm
+  DEPENDS:=+libffi
 endef
 
 define Package/micropython/description
@@ -55,4 +55,4 @@ define Package/micropython/install
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/unix/micropython $(1)/usr/bin/micropython
 endef
 
-$(eval $(call BuildPackage,micropython))
+$(eval $(call BuildPackage,micropython))