specs: Drop USE="-*"

This makes everything more complex, and often triggers unnecessary and
expensive rebuilds of e.g. large toolchain packages like gcc in the
installcd stages.

Signed-off-by: Matt Turner <mattst88@gentoo.org>

releases/specs-qemu/alpha/installcd-stage2-minimal.spec

@@ -22,7 +22,6 @@ boot/kernel: gentoo gentoo_nolsa
 boot/kernel/gentoo/sources: gentoo-sources
 boot/kernel/gentoo/config: ../../kconfig/alpha/installcd-4.14.83.config
 boot/kernel/gentoo/use:
-	-*
 	atm
 	fbcon
 	ipv6
@@ -42,7 +41,6 @@ boot/kernel/gentoo/use:
 boot/kernel/gentoo_nolsa/sources: gentoo-sources
 boot/kernel/gentoo_nolsa/config: ../../kconfig/alpha/installcd-4.14.83.nolsa.config
 boot/kernel/gentoo_nolsa/use:
-	-*
 	atm
 	fbcon
 	ipv6

releases/specs/hppa/installcd-stage1.spec

@@ -8,7 +8,6 @@ source_subpath: default/stage3-hppa1.1-openrc-@TIMESTAMP@
 pkgcache_path: /var/tmp/catalyst/packages/default/installcd-stage1
 portage_confdir: @REPO_DIR@/releases/portage/isos
 livecd/use:
-	-*
 	python_targets_python3_10
 	python_single_target_python3_10
 	compile-locales

releases/specs/hppa/installcd-stage2-minimal.spec

@@ -19,7 +19,6 @@ boot/kernel: hppa32 hppa64
 boot/kernel/hppa32/sources: sys-kernel/gentoo-sources
 boot/kernel/hppa32/config: @REPO_DIR@/releases/kconfig/hppa/hppa32.config
 boot/kernel/hppa32/use:
-	-*
 	python_targets_python3_10
 	python_single_target_python3_10
 	fbcon
@@ -52,7 +51,6 @@ boot/kernel/hppa64/gk_kernargs:
 	--kernel-readelf=hppa64-unknown-linux-gnu-readelf
 	--kernel-strip=hppa64-unknown-linux-gnu-strip
 boot/kernel/hppa64/use:
-	-*
 	python_targets_python3_10
 	python_single_target_python3_10
 	fbcon

releases/specs/ia64/installcd-stage2-minimal.spec

@@ -20,7 +20,6 @@ boot/kernel/gentoo/sources: gentoo-sources
 boot/kernel/gentoo/config: ../../kconfig/ia64/installcd-3.8.13.config
 boot/kernel/gentoo/console: ttyS0,9600 ttyS3,9600 ttySG0,115200
 boot/kernel/gentoo/use:
-	-*
 	atm
 	fbcon
 	ipv6

releases/specs/ppc/ppc32/installcd-stage2-minimal.spec

@@ -24,7 +24,6 @@ boot/kernel/ibmpower/console: ttyS0,9600 hvc0 hvsi0
 boot/kernel/ibmpower/extraversion: ibm
 boot/kernel/ibmpower/gk_kernargs: --kernel-cc='gcc -m64' --kernel-ld='ld -m elf64ppc' --kernel-as='as -a64'
 boot/kernel/ibmpower/use:
-	-*
 	atm
 	fbcon
 	ipv6
@@ -48,7 +47,6 @@ boot/kernel/ppc64/console: ttyS0,57600
 boot/kernel/ppc64/extraversion: ppc64
 boot/kernel/ppc64/gk_kernargs: --kernel-cc='gcc -m64' --kernel-ld='ld -m elf64ppc' --kernel-as='as -a64'
 boot/kernel/ppc64/use:
-	-*
 	atm
 	fbcon
 	ipv6
@@ -70,7 +68,6 @@ boot/kernel/ppc32/sources: sys-kernel/gentoo-sources
 boot/kernel/ppc32/config: ../../../kconfig/powerpc/ppc32.config
 boot/kernel/ppc32/extraversion: ppc32
 boot/kernel/ppc32/use:
-	-*
 	atm
 	fbcon
 	ipv6