Downgrade libpcre for x86

The new version breaks git, but only once it's in the repository.
Installing it manually alongside the old one works. Rebuilding git and
uploading a new package does not work, as for the package management,
the new version is exactly equal to the old, as the port revision isn't
newer. We need to come up with a proper way to handle this.

Also removes zsh, as that requires the new libpcre.

build/jam/repositories/HaikuPorts/x86

@@ -69,8 +69,8 @@ RemotePackageRepository HaikuPorts
 	liblayout_devel-1.4.2-1
 	libogg-1.3.0-2
 	libogg_devel-1.3.0-2
-	libpcre-8.33-1
-	libpcre_devel-8.33-1
+	libpcre-8.21-5
+	libpcre_devel-8.21-5
 	libpng-1.5.12-3
 	libpng_devel-1.5.12-3
 	libsolv-0.3.0_haiku_2013_10_01-1
@@ -132,7 +132,6 @@ RemotePackageRepository HaikuPorts
 	yasm-1.2.0-3
 	zlib-1.2.8-4
 	zlib_devel-1.2.8-4
-	zsh-5.0.2-1
 
 	# secondary architecture (x86_gcc2)
 	binutils_x86_gcc2-2.17_2013_04_21-2
@@ -263,7 +262,6 @@ RemotePackageRepository HaikuPorts
 	yasm
 	xz_utils
 	zlib
-	zsh
 	:
 	# debuginfo packages
 	grep