refactor boostrapping sections

- split sections per topic
- do not nest if macros
- use %without where appropriate

Related: rhbz#2056971
Signed-off-by: Jan Staněk <jstanek@redhat.com>

nodejs.spec

@@ -190,10 +190,14 @@ BuildRequires: systemtap-sdt-devel
 
 %if %{with bootstrap}
 Provides:      bundled(libuv) = %{libuv_version}
-Provides: bundled(nghttp2) = %{nghttp2_version}
 %else
 BuildRequires: libuv-devel >= 1:%{libuv_version}
 Requires:      libuv >= 1:%{libuv_version}
+%endif
+
+%if %{with bootstrap}
+Provides:      bundled(nghttp2) = %{nghttp2_version}
+%else
 BuildRequires: libnghttp2-devel >= %{nghttp2_version}
 Requires:      libnghttp2 >= %{nghttp2_version}
 %endif
@@ -288,9 +292,7 @@ Requires: zlib-devel%{?_isa}
 Requires: brotli-devel%{?_isa}
 Requires: nodejs-packaging
 
-%if %{with bootstrap}
-# deps are bundled
-%else
+%if %{without bootstrap}
 Requires: libuv-devel%{?_isa}
 %endif
 
@@ -679,6 +681,7 @@ end
 %changelog
 * Mon Apr 25 2022 Jan Staněk <jstanek@redhat.com> - 1:16.14.0-5
 - Unify configure calls into single command
+- Refactor bootstrap-related parts
 
 * Mon Apr 11 2022 Zuzana Svetlikova <zsvetlik@redhat.com> - 1:16.14.0-4
 - Apply lock file validation fixes