libssh2: remove $(FPIC) from TARGET_CFLAGS

libssh2 already makes sure that the compiler emits position-independent
code. Adding $(FPIC) makes no difference. In addition the libssh2 build
system puts its own flag behind the CFLAGS, overriding whatever was set
before.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

libs/libssh2/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libssh2
 PKG_VERSION:=1.8.0
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://www.libssh2.org/download
@@ -41,8 +41,6 @@ define Package/libssh2/config
 	source "$(SOURCE)/Config.in"
 endef
 
-TARGET_CFLAGS += $(FPIC)
-
 CONFIGURE_ARGS += \
 	--disable-examples-build \
 	--disable-silent-rules \