powerpc: Remove unnecessary casts of private_data

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c
index 7037855..46fa04f 100644
--- a/arch/powerpc/kvm/timing.c
+++ b/arch/powerpc/kvm/timing.c
@@ -182,7 +182,7 @@
 	}
 
 	if (c == 'c') {
-		struct seq_file *seqf = (struct seq_file *)file->private_data;
+		struct seq_file *seqf = file->private_data;
 		struct kvm_vcpu *vcpu = seqf->private;
 		/* Write does not affect our buffers previously generated with
 		 * show. seq_file is locked here to prevent races of init with