Remove uhttpmock-devel from BuildRequires on RHEL 9

This reverts commit 87d15532bc and
restores the build conditionals that went missing during the switch to
Meson in commit 83c9c1be30.

https://bugzilla.redhat.com/show_bug.cgi?id=1904990

libgdata.spec

@@ -1,6 +1,6 @@
 Name:           libgdata
 Version:        0.17.13
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Library for the GData protocol
 
 License:        LGPLv2+
@@ -13,7 +13,7 @@ BuildRequires:  glib2-devel
 BuildRequires:  gnome-online-accounts-devel
 BuildRequires:  gobject-introspection-devel
 BuildRequires:  gtk-doc
-%if 0%{?fedora} || 0%{?rhel} >= 9
+%if ! 0%{?rhel}
 BuildRequires:  uhttpmock-devel
 %endif
 BuildRequires:  json-glib-devel
@@ -46,6 +46,11 @@ developing applications that use %{name}.
 %build
 export CFLAGS="$RPM_OPT_FLAGS -fno-strict-aliasing"
 %meson \
+%if 0%{?rhel}
+  -Dalways_build_tests=false \
+%else
+  -Dalways_build_tests=true \
+%endif
   -Dinstalled_tests=false \
   -Dgtk_doc=true \
   %{nil}
@@ -83,6 +88,9 @@ export CFLAGS="$RPM_OPT_FLAGS -fno-strict-aliasing"
 %{_datadir}/vala/
 
 %changelog
+* Sat Dec 12 2020 Debarshi Ray <rishi@fedoraproject.org> - 0.17.13-2
+- Remove uhttpmock-devel from BuildRequires on RHEL 9
+
 * Thu Sep 03 2020 Kalev Lember <klember@redhat.com> - 0.17.13-1
 - Update to 0.17.13