Migrate from dep to go module

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/honnef.co/go/tools/cmd/staticcheck/README.md

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+# staticcheck
+
+_staticcheck_ offers extensive analysis of Go code, covering a myriad
+of categories. It will detect bugs, suggest code simplifications,
+point out dead code, and more.
+
+## Installation
+
+See [the main README](https://github.com/dominikh/go-tools#installation) for installation instructions.
+
+## Documentation
+
+Detailed documentation can be found on
+[staticcheck.io](https://staticcheck.io/docs/).
+

vendor/honnef.co/go/tools/config/example.conf

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+checks = ["all", "-ST1003", "-ST1014"]
+initialisms = ["ACL", "API", "ASCII", "CPU", "CSS", "DNS",
+	"EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID",
+	"IP", "JSON", "QPS", "RAM", "RPC", "SLA",
+	"SMTP", "SQL", "SSH", "TCP", "TLS", "TTL",
+	"UDP", "UI", "GID", "UID", "UUID", "URI",
+	"URL", "UTF8", "VM", "XML", "XMPP", "XSRF",
+	"XSS", "SIP", "RTP"]
+dot_import_whitelist = []
+http_status_code_whitelist = ["200", "400", "404", "500"]

vendor/honnef.co/go/tools/gcsizes/LICENSE

@@ -1,27 +0,0 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/honnef.co/go/tools/simple/CONTRIBUTING.md

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+# Contributing to gosimple
+
+## Before filing an issue:
+
+### Are you having trouble building gosimple?
+
+Check you have the latest version of its dependencies. Run
+```
+go get -u honnef.co/go/tools/simple
+```
+If you still have problems, consider searching for existing issues before filing a new issue.
+
+## Before sending a pull request:
+
+Have you understood the purpose of gosimple? Make sure to carefully read `README`.

vendor/honnef.co/go/tools/ssa/staticcheck.conf

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+# ssa/... is mostly imported from upstream and we don't want to
+# deviate from it too much, hence disabling SA1019
+checks = ["inherit", "-SA1019"]

vendor/honnef.co/go/tools/staticcheck/CONTRIBUTING.md

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+# Contributing to staticcheck
+
+## Before filing an issue:
+
+### Are you having trouble building staticcheck?
+
+Check you have the latest version of its dependencies. Run
+```
+go get -u honnef.co/go/tools/staticcheck
+```
+If you still have problems, consider searching for existing issues before filing a new issue.
+
+## Before sending a pull request:
+
+Have you understood the purpose of staticcheck? Make sure to carefully read `README`.