glsl: removing double semi-colons

Trivial change. Removing unnecessary semi-colons from the code.
I don't have push access so someone reviewing this can push it.

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

src/compiler/glsl/ast_function.cpp

@@ -1690,7 +1690,7 @@ process_record_constructor(exec_list *instructions,
                           constructor_type->fields.structure[i].name,
                           ir->type->name,
                           constructor_type->fields.structure[i].type->name);
-         return ir_rvalue::error_value(ctx);;
+         return ir_rvalue::error_value(ctx);
       }
 
       node = node->next;

src/compiler/glsl/ir_rvalue_visitor.cpp

@@ -146,7 +146,7 @@ ir_rvalue_base_visitor::rvalue_visit(ir_discard *ir)
 ir_visitor_status
 ir_rvalue_base_visitor::rvalue_visit(ir_return *ir)
 {
-   handle_rvalue(&ir->value);;
+   handle_rvalue(&ir->value);
    return visit_continue;
 }