Remove OpeningFunctionBraceBsdAllman rule which is not compatible with PSR12 (#42)

Author: mdumoulin

phpcs/ruleset.xml

@@ -30,7 +30,6 @@
     <rule ref="Generic.Formatting.SpaceAfterNot"/>
     <rule ref="Generic.Functions.CallTimePassByReference"/>
     <rule ref="Generic.Functions.FunctionCallArgumentSpacing"/>
-    <rule ref="Generic.Functions.OpeningFunctionBraceBsdAllman"/>
     <rule ref="Generic.NamingConventions.ConstructorName"/>
     <rule ref="Generic.NamingConventions.UpperCaseConstantName"/>
     <rule ref="Generic.NamingConventions.CamelCapsFunctionName">