x11-misc/rofi-emoji: fix USE flags

The ebuild required either the X or wayland USE flag to be set, but did
not enforce this. This commit removes the X flag and installs X
dependencies by default (i.e. if the wayland USE flag is not set).

Closes: https://bugs.gentoo.org/935159
Signed-off-by: Mathijs Saey <mathijs@mathsaey.be>

x11-misc/rofi-emoji/rofi-emoji-3.3.0.ebuild

@@ -13,26 +13,22 @@ LICENSE="MIT"
 SLOT="0"
 KEYWORDS="~amd64"
 
-IUSE="X wayland"
+IUSE="wayland"
 
 DEPEND="
-	wayland? (
-		gui-apps/rofi-wayland
-	)
-	X? (
-		x11-misc/rofi
-	)
+	!wayland? ( x11-misc/rofi )
+	wayland? ( gui-apps/rofi-wayland )
 "
 RDEPEND="
 	${DEPEND}
+	!wayland? (
+		|| ( x11-misc/xsel x11-misc/xclip x11-misc/copyq )
+		x11-misc/xdotool
+	)
 	wayland? (
 		gui-apps/wl-clipboard
 		gui-apps/wtype
 	)
-	X? (
-		|| ( x11-misc/xsel x11-misc/xclip x11-misc/copyq )
-		x11-misc/xdotool
-	)
 "
 
 src_prepare() {