specs: Drop USE=static-libs from installcd

This was added in 2011 in commit 1d973914 ("Add static-libs to USE for
the installcd-stage1 specs to fix the dev-libs/libgcrypt failure
build.") to resolve an unreferenced problem.

Reduces the number of packages built for the alpha installcd from 148 to
105, because presumably 43 packages that are already part of the stage3
seed were being rebuilt with USE=static-libs enabled. This is pointless
because the livecd-stage2 spec's livecd/rm contains /lib*/*.a and
/usr/lib*/*.a, so all the static libraries are being deleted anyway.

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

releases/specs/alpha/installcd-stage1.spec

@@ -17,7 +17,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	-static
 	unicode
 	xml

releases/specs/amd64/hardened/admincd-stage1.spec

@@ -25,7 +25,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/amd64/installcd-stage1.spec

@@ -23,7 +23,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/arm64/installcd-stage1.spec

@@ -23,7 +23,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/ia64/installcd-stage1.spec

@@ -18,7 +18,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	xml
 
 livecd/packages:

releases/specs/ppc/ppc32/installcd-stage1.spec

@@ -21,7 +21,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/ppc/ppc64le/installcd-stage1.spec

@@ -24,7 +24,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	symlink
 	unicode
 	xml

releases/specs/sparc/sparc64/installcd-stage1.spec

@@ -22,7 +22,6 @@ livecd/use:
 # needs broken dante
 #	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/x86/hardened/admincd-stage1-openrc.spec

@@ -25,7 +25,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml
 

releases/specs/x86/i486/installcd-stage1-openrc.spec

@@ -22,7 +22,6 @@ livecd/use:
 	readline
 	socks5
 	ssl
-	static-libs
 	unicode
 	xml