diff --git a/vendor/pulp-platform/common_cells/src/sync.sv.1 b/vendor/pulp-platform/common_cells/src/sync.sv.1
deleted file mode 100644
index b7bb781d7c0..00000000000
--- a/vendor/pulp-platform/common_cells/src/sync.sv.1
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2018 ETH Zurich and University of Bologna.
-// Copyright and related rights are licensed under the Solderpad Hardware
-// License, Version 0.51 (the "License"); you may not use this file except in
-// compliance with the License. You may obtain a copy of the License at
-// http://solderpad.org/licenses/SHL-0.51. Unless required by applicable law
-// or agreed to in writing, software, hardware and materials distributed under
-// this License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
-// CONDITIONS OF ANY KIND, either express or implied. See the License for the
-// specific language governing permissions and limitations under the License.
-
-// Antonio Pullini <pullinia@iis.ee.ethz.ch>
-
-module sync #(
-    parameter int unsigned STAGES = 2,
-    parameter bit ResetValue = 1'b0
-) (
-    input  logic clk_i,
-    input  logic rst_ni,
-    input  logic serial_i,
-    output logic serial_o
-);
-
-   (* dont_touch = "true" *)
-   (* async_reg = "true" *)
-   logic [STAGES-1:0] reg_q;
-
-    always_ff @(posedge clk_i, negedge rst_ni) begin
-        if (!rst_ni) begin
-            reg_q <= {STAGES{ResetValue}};
-        end else begin
-            reg_q <= {reg_q[STAGES-2:0], serial_i};
-        end
-    end
-
-    assign serial_o = reg_q[STAGES-1];
-
-endmodule