configury: remove some dead code

perl is now mandatory to build Open MPI,
so there is no need to check for it

Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp>

config/opal_config_asm.m4

@@ -1255,8 +1255,7 @@ if test "$opal_cv_asm_arch" != "WINDOWS" && test "$opal_cv_asm_builtin" != "BUIL
     rm -rf conftest.*
 
     if test "$opal_cv_asm_file" = "" ; then
-        if test ! "$PERL" = "" ; then
-            # we have perl...  Can we generate a file?
+        # Can we generate a file?
         AC_MSG_CHECKING([whether possible to generate assembly file])
         mkdir -p opal/asm/generated
         opal_cv_asm_file="atomic-local.s"
@@ -1273,11 +1272,6 @@ if test "$opal_cv_asm_arch" != "WINDOWS" && test "$opal_cv_asm_builtin" != "BUIL
             AC_MSG_WARN([Could not build atomic operations assembly file.])
             AC_MSG_WARN([There will be no atomic operations for this build.])
         fi
-        else
-            AC_MSG_WARN([Could not find prebuilt atomic operations file and could not])
-            AC_MSG_WARN([find perl to attempt to generate a custom assembly file.])
-            AC_MSG_WARN([There will be no atomic operations for this build.])
-        fi
     fi
     rm -rf conftest.*
 else