Remove top-level kokoro/ folder

We now use tests/kokoro/ instead.

Bug b/126742833

Change-Id: I50e41a6299238ca91ff92c0947b3060f9a840a5d
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/27789
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
diff --git a/kokoro/gcp_ubuntu/continuous.cfg b/kokoro/gcp_ubuntu/continuous.cfg
deleted file mode 100644
index fed5c81..0000000
--- a/kokoro/gcp_ubuntu/continuous.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Location of the continuous bash script in Git.
-build_file: "SwiftShader/tests/kokoro/gcp_ubuntu/continuous.sh"
diff --git a/kokoro/gcp_ubuntu/continuous.sh b/kokoro/gcp_ubuntu/continuous.sh
deleted file mode 100755
index 6bee5f4..0000000
--- a/kokoro/gcp_ubuntu/continuous.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-# Fail on any error.
-set -e
-# Display commands being run.
-set -x
-
-cd git/SwiftShader
-
-git submodule update --init
-
-mkdir -p build && cd build
-
-cmake ..
-make --jobs=$(nproc)
-
-# Run the reactor unit tests.
-./ReactorUnitTests
-
-# Run the GLES unit tests. TODO(capn): rename.
-./unittests
-
-# Run the Vulkan unit tests.
-cd .. # Must be run from project root
-build/vk-unittests
diff --git a/kokoro/gcp_ubuntu/presubmit.cfg b/kokoro/gcp_ubuntu/presubmit.cfg
deleted file mode 100644
index fed5c81..0000000
--- a/kokoro/gcp_ubuntu/presubmit.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Location of the continuous bash script in Git.
-build_file: "SwiftShader/tests/kokoro/gcp_ubuntu/continuous.sh"
diff --git a/kokoro/gcp_windows/continuous.bat b/kokoro/gcp_windows/continuous.bat
deleted file mode 100644
index 75179cf..0000000
--- a/kokoro/gcp_windows/continuous.bat
+++ /dev/null
@@ -1,9 +0,0 @@
-@echo on
-
-SET PATH=%PATH%;C:\python27
-
-cd git\SwiftShader
-
-git submodule update --init
-
-"C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild" SwiftShader.sln
diff --git a/kokoro/gcp_windows/continuous.cfg b/kokoro/gcp_windows/continuous.cfg
deleted file mode 100644
index 7ed57a5..0000000
--- a/kokoro/gcp_windows/continuous.cfg
+++ /dev/null
@@ -1,5 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Location of the continuous script in Git.
-build_file: "SwiftShader/tests/kokoro/gcp_windows/continuous.bat"
-
diff --git a/kokoro/gcp_windows/presubmit.cfg b/kokoro/gcp_windows/presubmit.cfg
deleted file mode 100644
index 7ed57a5..0000000
--- a/kokoro/gcp_windows/presubmit.cfg
+++ /dev/null
@@ -1,5 +0,0 @@
-# Format: //devtools/kokoro/config/proto/build.proto
-
-# Location of the continuous script in Git.
-build_file: "SwiftShader/tests/kokoro/gcp_windows/continuous.bat"
-