Fix line ending issues

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,5 +13,3 @@ Here's a quick checklist that should be present in PRs:
     ```
     Fix issue with non-ascii contents in doctest text files.
     ```
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LICENSE

@@ -16,4 +16,3 @@
   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   SOFTWARE.
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OVERVIEW.md

@@ -74,5 +74,3 @@ serialize collected items to send them through the wire, as workers live in anot
 The problem is that test items are not easily (impossible?) to serialize, as they contain references to
 the test functions, fixture managers, config objects, etc. Even if one manages to serialize it,
 it seems it would be very hard to get it right and easy to break by any small change in pytest.
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tox.ini

@@ -51,5 +51,3 @@ addopts = -rsfxX
 [flake8]
 max-line-length = 120
 ignore = E203,W503
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-