remove unused buildrequires

While highlight was only built/shipped on some arches in RHEL 7 Optional,
as of RHEL 8 it is built on all arches (albeit not shipped as of 10).

git.spec

@@ -149,7 +149,6 @@ BuildRequires:  rubygem-asciidoctor
 BuildRequires:  asciidoc >= 8.4.1
 %endif
 # endif with asciidoctor
-BuildRequires:  perl(File::Compare)
 BuildRequires:  xmlto
 %if %{with linkcheck}
 BuildRequires:  linkchecker
@@ -179,7 +178,6 @@ BuildRequires:  openssl-devel
 BuildRequires:  pcre2-devel
 BuildRequires:  perl(Error)
 BuildRequires:  perl(lib)
-BuildRequires:  perl(Test)
 %if %{use_perl_generators}
 BuildRequires:  perl-generators
 %endif
@@ -232,7 +230,7 @@ BuildRequires:  glibc-langpack-is
 BuildRequires:  gnupg2-smime
 %endif
 # endif fedora or el >= 9
-%if 0%{?fedora} || ( 0%{?rhel} >= 7 && ( "%{_arch}" == "ppc64le" || "%{_arch}" == "x86_64" ) )
+%if 0%{?fedora} || 0%{?rhel} >= 8 || ( 0%{?rhel} == 7 && ( "%{_arch}" == "ppc64le" || "%{_arch}" == "x86_64" ) )
 BuildRequires:  highlight
 %endif
 # endif fedora or el7+ (ppc64le/x86_64)
@@ -436,9 +434,7 @@ Summary:        Git repository browser
 BuildArch:      noarch
 Requires:       git = %{version}-%{release}
 Requires:       git-gui = %{version}-%{release}
-# Keep gitk on tcl/tk 8.x until its ready for 9 (also see below in config.mk)
+Requires:       tk
-# https://github.com/j6t/gitk/issues/5
-Requires:       tk8 >= 8.4
 %description -n gitk
 %{summary}.
 
@@ -596,10 +592,6 @@ gitwebdir = %{_localstatedir}/www/git
 DEFAULT_TEST_TARGET = prove
 GIT_PROVE_OPTS = --verbose --normalize %{?_smp_mflags} --formatter=TAP::Formatter::File
 GIT_TEST_OPTS = -x --verbose-log
-
-# Keep gitk on tcl/tk 8.x until its ready for 9 (see more above in gitk requires)
-TCLTK_PATH = wish8
-TCL_PATH = tclsh8
 EOF
 
 # Filter bogus perl requires
@@ -1055,6 +1047,9 @@ rmdir --ignore-fail-on-non-empty "$testdir"
 * Thu Oct 23 2025 Ondřej Pohořelský <opohorel@redhat.com> - 2.51.1-1
 - update to 2.51.1
 
+* Sun Oct 12 2025 Yaakov Selkowitz <yselkowi@redhat.com> - 2.51.0-3
+- Revbump for tcl/tk 9
+
 * Thu Aug 21 2025 Ondřej Pohořelský <opohorel@redhat.com> - 2.51.0-2
 - exclude sample hook files from automatic dependency detection