net-p2p/dogecoin-qt: 9999 drop protobuf

- Removed protobuf dependencies as they are no longer required.
- Changed required_use for dogecoind option to use non-pruned selection
  because dogecoind is built in a non-pruned configuration.  Users can,
  however, specify size of pruned blockchain in dogecoin.conf once
  dogecoind is built and installed.

Signed-off-by: Victor Skovorodnikov <victor3.14@yandex.com>

net-p2p/dogecoin-qt/dogecoin-qt-9999.ebuild

@@ -14,7 +14,7 @@ DB_VER="5.3"
 IUSE="cpu_flags_x86_avx2 cpu_flags_x86_sse2 intel-avx2 dogecoind experimental +gui +pie +prune scrypt-sse2 +ssp tests utils +wallet zmq"
 REQUIRED_USE="
 	!gui? ( dogecoind utils )
-	dogecoind? ( utils )
+	dogecoind? ( utils !prune )
 	intel-avx2?  ( experimental )
 	scrypt-sse2? ( experimental )
 	experimental? ( || ( intel-avx2 scrypt-sse2 ) )
@@ -23,7 +23,6 @@ REQUIRED_USE="
 DOGEDIR="/opt/${PN}"
 DEPEND="
 	dev-libs/libevent:=
-	dev-libs/protobuf
 	dev-libs/openssl
 	dev-build/libtool
 	dev-build/automake:=
@@ -45,7 +44,6 @@ DEPEND="
 
 RDEPEND="${DEPEND}
 	dev-vcs/git
-	dev-cpp/abseil-cpp
 	cpu_flags_x86_avx2? (
 		intel-avx2? ( ~app-crypt/intel-ipsec-mb-1.3 )
 	)
@@ -83,7 +81,7 @@ src_configure() {
 		--bindir="${DOGEDIR}/bin"
 		--disable-bench
 		--enable-c++17
-		$(use_with gui qt5)
+		--with-gui=$(usex gui qt5 no)
 		$(use_with intel-avx2 intel-avx2)
 		$(use_with dogecoind daemon)
 		$(use_with utils utils)