package/glibc: remove --{with, without}-fp option

This option has been removed since glibc 2.27 [1].

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=8df5d34720dd71e934545bade879e04697830757

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/glibc/glibc.mk

@@ -93,7 +93,6 @@ define GLIBC_CONFIGURE_CMDS
 		--build=$(GNU_HOST_NAME) \
 		--prefix=/usr \
 		--enable-shared \
-		$(if $(BR2_SOFT_FLOAT),--without-fp,--with-fp) \
 		$(if $(BR2_x86_64),--enable-lock-elision) \
 		--with-pkgversion="Buildroot" \
 		--without-cvs \