Don't define license tag separately for each subpackage

It's sufficient to just have it at the top of the main package.

wayland.spec

@@ -27,13 +27,11 @@ applications, X servers (rootless or fullscreen) or other display servers.
 
 %package devel
 Summary: Common headers for wayland
-License: MIT
 %description devel
 Common headers for wayland
 
 %package doc
 Summary: Wayland development documentation
-License: MIT
 BuildArch: noarch
 Obsoletes: wayland < 1.8.91
 %description doc
@@ -41,25 +39,21 @@ Wayland development documentation
 
 %package -n libwayland-client
 Summary: Wayland client library
-License: MIT
 %description -n libwayland-client
 Wayland client library
 
 %package -n libwayland-cursor
 Summary: Wayland cursor library
-License: MIT
 %description -n libwayland-cursor
 Wayland cursor library
 
 %package -n libwayland-server
 Summary: Wayland server library
-License: MIT
 %description -n libwayland-server
 Wayland server library
 
 %package -n libwayland-client-devel
 Summary: Headers and symlinks for developing wayland client applications
-License: MIT
 Requires: libwayland-client%{?_isa} = %{version}-%{release}
 Requires: wayland-devel%{?_isa} = %{version}-%{release}
 %description -n libwayland-client-devel
@@ -67,7 +61,6 @@ Headers and symlinks for developing wayland client applications.
 
 %package -n libwayland-cursor-devel
 Summary: Headers and symlinks for developing wayland cursor applications
-License: MIT
 Requires: libwayland-cursor%{?_isa} = %{version}-%{release}
 Requires: wayland-devel%{?_isa} = %{version}-%{release}
 %description -n libwayland-cursor-devel
@@ -75,7 +68,6 @@ Headers and symlinks for developing wayland cursor applications.
 
 %package -n libwayland-server-devel
 Summary: Headers and symlinks for developing wayland server applications
-License: MIT
 Requires: libwayland-server%{?_isa} = %{version}-%{release}
 Requires: wayland-devel%{?_isa} = %{version}-%{release}
 %description -n libwayland-server-devel