micropython-lib: Indicate that pcre is a runtime dependency

libpcre is needed at runtime not a buildtime. Indicate this in Config.in
and remove MICROPYTHON_LIB_DEPENDENCIES.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/micropython-lib/Config.in

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_MICROPYTHON_LIB
 	bool "micropython-lib"
-	select BR2_PACKAGE_PCRE
+	select BR2_PACKAGE_PCRE # runtime
 	depends on BR2_PACKAGE_MICROPYTHON
 	help
 	  Core Python libraries ported to MicroPython.

package/micropython-lib/micropython-lib.mk

@@ -8,7 +8,6 @@ MICROPYTHON_LIB_VERSION = v1.8.6
 MICROPYTHON_LIB_SITE = $(call github,micropython,micropython-lib,$(MICROPYTHON_LIB_VERSION))
 MICROPYTHON_LIB_LICENSE = Python software foundation license v2 (some modules), MIT (everything else)
 MICROPYTHON_LIB_LICENSE_FILES = LICENSE
-MICROPYTHON_LIB_DEPENDENCIES = pcre
 
 define MICROPYTHON_LIB_INSTALL_TARGET_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \