Revert "libcurl: add host variant"

The host-libcurl was initially added for host-cargo, but it is no
longer used, so we can remove it.

This reverts commit 736e0fc5d6103300fb5d6b0cde5e22ce978b8a80.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libcurl/libcurl.mk

@@ -186,17 +186,4 @@ endef
 LIBCURL_POST_INSTALL_TARGET_HOOKS += LIBCURL_TARGET_CLEANUP
 endif
 
-HOST_LIBCURL_DEPENDENCIES = host-openssl
-HOST_LIBCURL_CONF_OPTS = \
-	--disable-manual \
-	--disable-ntlm-wb \
-	--disable-curldebug \
-	--with-ssl \
-	--without-gnutls \
-	--without-mbedtls \
-	--without-nss
-
-HOST_LIBCURL_POST_PATCH_HOOKS += LIBCURL_FIX_DOT_PC
-
 $(eval $(autotools-package))
-$(eval $(host-autotools-package))