Remove redundant function declarations from source/operand.h (#5584)

Flagged by -Wredundant-decls

I'm assuming the declarations in libspirv.h are part of the external
interface and need to be kept.


Change-Id: I6b138d3322a7a4ee49ee33b0fbcf0ca35dd92261

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
diff --git a/source/operand.h b/source/operand.h
index a3010d9..f74c933 100644
--- a/source/operand.h
+++ b/source/operand.h
@@ -57,12 +57,6 @@
 // Gets the name string of the non-variable operand type.
 const char* spvOperandTypeStr(spv_operand_type_t type);
 
-// Returns true if the given type is concrete.
-bool spvOperandIsConcrete(spv_operand_type_t type);
-
-// Returns true if the given type is concrete and also a mask.
-bool spvOperandIsConcreteMask(spv_operand_type_t type);
-
 // Returns true if an operand of the given type is optional.
 bool spvOperandIsOptional(spv_operand_type_t type);