Revert "Drop utf8cpp for now"

This reverts commit 119cdb5e5e.

libebml.spec

@@ -1,7 +1,3 @@
-%if 0%{?el9}
-%global _without_utf8cpp 1
-%endif
-
 Summary:    Extensible Binary Meta Language library
 Name:       libebml
 Version:    1.4.2
@@ -14,7 +10,7 @@ Patch0:     %{name}-use-system-utf8cpp.patch
 Patch1:     %{name}-gcc11.patch
 BuildRequires: cmake3
 BuildRequires: gcc-c++
-%{!?_without_utf8cpp:BuildRequires: utf8cpp-devel}
+BuildRequires: utf8cpp-devel
 
 %description
 Extensible Binary Meta Language access library A library for reading
@@ -39,11 +35,9 @@ will use the Extensible Binary Meta Language library.
 
 %prep
 %setup -q
-%{!?_without_utf8cpp:
 %patch0 -p1 -b .utf8cpp
+%patch1 -p1 -b .gcc11
 rm -r src/lib/utf8-cpp
-}
-%patch1 -p1 -b .gcc11dd
 
 
 %build