diff --git a/build_tools/Sign-File.ps1 b/build_tools/Sign-File.ps1
deleted file mode 100644
index 09094096a..000000000
--- a/build_tools/Sign-File.ps1
+++ /dev/null
@@ -1,78 +0,0 @@
-[CmdletBinding()]
-param (
-    [Parameter()]
-    [String]
-    $Path
-)
-
-
-function FindSignTool {
-    $SignTool = "signtool.exe"
-    if (Get-Command $SignTool -ErrorAction SilentlyContinue) {
-        return $SignTool
-    }
-    $SignTool = "${env:ProgramFiles(x86)}\Windows Kits\10\bin\x64\signtool.exe"
-    if (Test-Path -Path $SignTool -PathType Leaf) {
-        return $SignTool
-    }
-    $SignTool = "${env:ProgramFiles(x86)}\Windows Kits\10\bin\x86\signtool.exe"
-    if (Test-Path -Path $SignTool -PathType Leaf) {
-        return $SignTool
-    }
-    $sdkVers = "10.0.22000.0", "10.0.20348.0", "10.0.19041.0", "10.0.17763.0"
-    Foreach ($ver in $sdkVers)
-    {
-        $SignTool = "${env:ProgramFiles(x86)}\Windows Kits\10\bin\${ver}\x64\signtool.exe"
-        if (Test-Path -Path $SignTool -PathType Leaf) {
-            return $SignTool
-        }
-    }
-    "signtool.exe not found"
-    Exit 1
-}
-
-function SignEsptool {
-    param(
-        [Parameter()]
-        [String]
-        $Path
-    )
-
-    $SignTool = FindSignTool
-    "Using: $SignTool"
-    $CertificateFile = [system.io.path]::GetTempPath() + "certificate.pfx"
-
-    if ($null -eq $env:CERTIFICATE) {
-        "CERTIFICATE variable not set, unable to sign the file"
-        Exit 1
-    }
-
-    if ("" -eq $env:CERTIFICATE) {
-        "CERTIFICATE variable is empty, unable to sign the file"
-        Exit 1
-    }
-
-    $SignParameters = @("sign", "/tr", 'http://timestamp.digicert.com', "/td", "SHA256", "/f", $CertificateFile, "/fd", "SHA256")
-    if ($env:CERTIFICATE_PASSWORD) {
-        "CERTIFICATE_PASSWORD detected, using the password"
-        $SignParameters += "/p"
-        $SignParameters += $env:CERTIFICATE_PASSWORD
-    }
-    $SignParameters += $Path
-
-    [byte[]]$CertificateBytes = [convert]::FromBase64String($env:CERTIFICATE)
-    [IO.File]::WriteAllBytes($CertificateFile, $CertificateBytes)
-
-    &$SignTool $SignParameters
-
-    if (0 -eq $LASTEXITCODE) {
-        Remove-Item $CertificateFile
-    } else {
-        Remove-Item $CertificateFile
-        "Signing failed"
-        Exit 1
-    }
-
-}
-
-SignEsptool ${Path}
diff --git a/build_tools/espressif.ico b/build_tools/espressif.ico
deleted file mode 100644
index c5550f148..000000000
Binary files a/build_tools/espressif.ico and /dev/null differ