cross-*: remove do_clean().

It was incorrectly removing $XBPS_CROSS_BASE (cross sysroot)... and there's
no need to perform a cleanup before the pkg installation will overwrite
those files (if it's required).

srcpkgs/cross-arm-linux-gnueabi/template

@@ -264,14 +264,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-arm-linux-gnueabi-libc_package() {
 	short_desc+=" - glibc files"
 	noarch=yes

srcpkgs/cross-arm-linux-gnueabihf/template

@@ -272,14 +272,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-arm-linux-gnueabihf-libc_package() {
 	short_desc+=" - glibc files"
 	noarch=yes

srcpkgs/cross-arm-linux-gnueabihf7/template

@@ -274,14 +274,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-arm-linux-gnueabihf7-libc_package() {
 	short_desc+=" - glibc files"
 	noarch=yes

srcpkgs/cross-arm-linux-musleabi/template

@@ -208,14 +208,6 @@ do_install() {
 	rm -f ${DESTDIR}/${_sysroot}/lib/*.py
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_sysroot}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-arm-linux-musleabi-libc_package() {
 	short_desc+=" - libc files"
 	noarch=yes

srcpkgs/cross-i686-linux-musl/template

@@ -213,14 +213,6 @@ do_install() {
 	rm -f ${DESTDIR}/${_sysroot}/lib/*.py
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_sysroot}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-i686-linux-musl-libc_package() {
 	short_desc+=" - libc files"
 	noarch=yes

srcpkgs/cross-i686-pc-linux-gnu/template

@@ -268,14 +268,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-i686-pc-linux-gnu-libc_package() {
 	short_desc+=" - glibc files"
 	noarch=yes

srcpkgs/cross-mips-softfloat-linux-gnu/template

@@ -260,14 +260,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-mips-softfloat-linux-gnu-libc_package() {
 	short_desc+=" - libc files"
 	noarch=yes

srcpkgs/cross-mipsel-softfloat-linux-gnu/template

@@ -260,14 +260,6 @@ do_install() {
 	done
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_CROSS_SYSROOT}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-mipsel-softfloat-linux-gnu-libc_package() {
 	short_desc+=" - libc files"
 	noarch=yes

srcpkgs/cross-x86_64-linux-musl/template

@@ -212,14 +212,6 @@ do_install() {
 	rm -f ${DESTDIR}/${_sysroot}/lib/*.py
 }
 
-do_clean() {
-	# Remove temporary stuff from masterdir
-	rm -rf ${_sysroot}
-	rm -f /usr/bin/${_triplet}*
-	rm -rf /usr/lib/gcc/${_triplet}
-	rm -rf /usr/libexec/gcc/${_triplet}
-}
-
 cross-x86_64-linux-musl-libc_package() {
 	short_desc+=" - libc files"
 	noarch=yes