PHPLIB-240: FindAndModify should throw for unsupported write concern

This reverts the logic in 21b7d92aef4def00abade10911bae41f1b5ea378, which was to ignore an unsupported write concern for the duration of 1.x. Since the Collection helper methods do not supply a default write concern option if it is not supported, this change will only affect users that were explicitly passing a write concern and relying on the library to ignore it.

While a minor BC break, this changes makes findAndModify consistent with other write commands.

Author: jmikola

source/includes/apiargs-MongoDBCollection-method-findOneAndDelete-option.yaml

@@ -18,6 +18,6 @@ source:
   file: apiargs-MongoDBCollection-common-option.yaml
   ref: writeConcern
 post: |
-  This is not supported for server versions prior to 3.2 and will be ignored if
-  used.
+  This is not supported for server versions prior to 3.2 and will result in an
+  exception at execution time if used.
 ...

source/includes/apiargs-MongoDBCollection-method-findOneAndReplace-option.yaml

@@ -39,6 +39,6 @@ source:
   file: apiargs-MongoDBCollection-common-option.yaml
   ref: writeConcern
 post: |
-  This is not supported for server versions prior to 3.2 and will be ignored if
-  used.
+  This is not supported for server versions prior to 3.2 and will result in an
+  exception at execution time if used.
 ...

source/includes/apiargs-MongoDBCollection-method-findOneAndUpdate-option.yaml

@@ -39,6 +39,6 @@ source:
   file: apiargs-MongoDBCollection-common-option.yaml
   ref: writeConcern
 post: |
-  This is not supported for server versions prior to 3.2 and will be ignored if
-  used.
+  This is not supported for server versions prior to 3.2 and will result in an
+  exception at execution time if used.
 ...