Revert the eval{} to eval ""

As per feedback, the eval{} was wrong and will unconditionally try
to load the module and throw an exception if it isn't (because use
is compile-time).

t/99pod.t

@@ -1,7 +1,7 @@
 use strict;
 use warnings;
 use Test::More;
-eval { use Test::Pod 1.00 };
+eval "use Test::Pod 1.00";
 plan skip_all => "Test::Pod 1.00 required for testing POD" if $@;
 my @poddirs = qw( blib );
 all_pod_files_ok( all_pod_files( @poddirs ) );

t/cpan-changes.t

@@ -5,7 +5,7 @@ use warnings;
 
 use Test::More;
 
-eval { use Test::CPAN::Changes };
+eval "use Test::CPAN::Changes";
 plan skip_all => 'Test::CPAN::Changes required for this test' if $@;
 
 changes_ok();

t/style-trailing-space.t

@@ -5,7 +5,7 @@ use warnings;
 
 use Test::More;
 
-eval { use Test::TrailingSpace };
+eval "use Test::TrailingSpace";
 if ($@)
 {
     plan skip_all => "Test::TrailingSpace required for trailing space test.";