RPM: Fix wasm conditionals and misc spec cleanups

1. Wrongly mentioned conditionals were causing crun-wasm package
   creation on CentOS Stream 10 and ELN environments which don't have
   wasm support yet.

2. All environments that end up consuming rpm/crun.spec have rpmautospec
   enabled so we don't need these conditionals anymore. CentOS Stream 9
   should soon get rpmautospec support as well, and the current lack of it
   is not really a blocker to removal of these conditionals.

Signed-off-by: Lokesh Mandvekar <[email protected]>

rpm/crun.spec

@@ -1,17 +1,17 @@
 %global krun_opts %{nil}
 %global wasmedge_opts %{nil}
 
-# krun and wasm[edge,time] support only on aarch64 and x86_64
-%ifarch aarch64 || x86_64
-%global wasm_support 1
-
 %if %{defined copr_username}
 %define copr_build 1
 %endif
 
+# krun and wasm support only on aarch64 and x86_64
+%ifarch aarch64 || x86_64
+
 # Disable wasmedge on rhel 10 until EPEL10 is in place, otherwise it causes
 # build issues on copr
-%if %{defined fedora} || (%{defined %copr_build} && %{defined rhel} && 0%{?rhel} < 10)
+%if %{defined fedora} || (%{defined copr_build} && %{defined rhel} && 0%{?rhel} < 10)
+%global wasm_support 1
 %global wasmedge_support 1
 %global wasmedge_opts --with-wasmedge
 %endif
@@ -112,10 +112,6 @@ Recommends: wasmedge
 %make_install prefix=%{_prefix}
 rm -rf %{buildroot}%{_prefix}/lib*
 
-%if %{defined wasm_support}
-ln -s %{name} %{buildroot}%{_bindir}/%{name}-wasm
-%endif
-
 %files
 %license COPYING
 %{_bindir}/%{name}
@@ -135,12 +131,4 @@ ln -s %{name} %{buildroot}%{_bindir}/%{name}-wasm
 %endif
 
 %changelog
-%if %{defined autochangelog}
 %autochangelog
-%else
-# NOTE: This changelog will be visible on CentOS 8 Stream builds
-# Other envs are capable of handling autochangelog
-* Tue Jun 13 2023 RH Container Bot <[email protected]>
-- Placeholder changelog for envs that are not autochangelog-ready.
-- Contact upstream if you need to report an issue with the build.
-%endif