opkg: cleanup man pages and md5 fixup

66f458d fix md5sum calculation
02eaf9c man: remove obsolete manual pages

Signed-off-by: Paul Spooren <[email protected]>

package/system/opkg/Makefile

@@ -14,9 +14,9 @@ PKG_FLAGS:=essential
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://git.openwrt.org/project/opkg-lede.git
-PKG_SOURCE_DATE:=2020-11-24
-PKG_SOURCE_VERSION:=61b3c62d1c0dbbdcee2d67f56fb112f0af80527a
-PKG_MIRROR_HASH:=4237d525104ba4369a281d71b96307410d592e2aaa6d689306bf7d948def951b
+PKG_SOURCE_DATE:=2020-11-25
+PKG_SOURCE_VERSION:=66f458decf9fd2839d77bf420e93d9c78025488a
+PKG_MIRROR_HASH:=932cf0002fd05e8a231df6d3e2c807b2c62501aa36ac2a3e20665622872e262d
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=COPYING