nir: Remove unused include

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

src/compiler/nir/nir_lower_locals_to_regs.c

@@ -26,7 +26,6 @@
  */
 
 #include "nir.h"
-#include "nir_array.h"
 
 struct locals_to_regs_state {
    nir_shader *shader;