memcached: Update to 1.5.14

Fixes compilation with GCC8.

Remove obsolete patch. Small Makefile cleanups.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/memcached/Makefile

@@ -9,15 +9,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=memcached
-PKG_VERSION:=1.5.2
+PKG_VERSION:=1.5.14
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://memcached.org/files
-PKG_HASH:=9ac93113bdb5d037e79c61277386564ac2e5e31d49e594f11e554e4c149b7245
+PKG_SOURCE_URL:=https://memcached.org/files
+PKG_HASH:=9c5bdf29a780fb6c6f7c9eaaeeda0583efdf663193758c3e316c969a510af2a9
 
 PKG_MAINTAINER:=Thomas Heil <heil@terminal-consulting.de>
-
 PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=COPYING
 
@@ -30,7 +29,7 @@ define Package/memcached
   CATEGORY:=Network
   DEPENDS:=+libevent2 +libpthread
   TITLE:=The high-performance, distributed memory object caching system
-  URL:=http://memcached.org/
+  URL:=https://memcached.org/
 endef
 
 define Package/memcached/description
@@ -54,12 +53,6 @@ CONFIGURE_ARGS += \
 	--disable-coverage \
 	--disable-sasl
 
-TARGET_CFLAGS += \
-	-std=gnu99
-
-TARGET_LDFLAGS = \
-	-L$(STAGING_DIR)/usr/lib/libevent -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
-
 define Package/memcached/install
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/memcached $(1)/usr/bin/