The validation script from #10681 is too pedantic, and does not handle
well situations like:
```
cat <<EOF # or <<-EOF
Whether the leading whitespace is stripped out or not by bash
it should still be considered as valid.
EOF
```
This reverts commit 4e65c1c319afffc325853b88c9aef0c42ec83482.
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: 0252ad0adc37a34b88fa908ae74a13b940febdcb
Component: engine
Created a validation that detects all trailing whitespaces from every
text file that isn't *.go, *.md, vendor/*,
docs/theme/mkdocs/tipuesearch*
Removed trailing whitespaces from every text file except from vendor/*
builder/parser/testfiles*, docs/theme/mkdocs/tipuesearch* and *.md
Signed-off-by: André Martins <martins@noironetworks.com>
Upstream-commit: 4e65c1c319afffc325853b88c9aef0c42ec83482
Component: engine
