Enable pythran again

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

scipy.spec

@@ -4,11 +4,7 @@
 # Pythran is an optional build dependency.
 # When used, it makes some modules faster,
 # but it is usually not available soon enough for new major Python versions.
-%ifnarch riscv64
-%bcond_without pythran
-%else
 %bcond_with pythran
-%endif
 
 # The code is not safe to build with LTO
 %global _lto_cflags %{nil}