No Bug - Reenable swiftlint. Fix a small number of linting errors. (#3278)

Author: farhanpatel

.swiftlint.yml

@@ -1,20 +1,14 @@
 disabled_rules: # rule identifiers to exclude from running
   - variable_name
-  - legacy_cggeometry_functions
   - todo
   - trailing_newline
   - type_name
   - function_body_length
-  - force_try
-  - force_cast
   - missing_docs
   - valid_docs
   - cyclomatic_complexity
   - type_body_length
   - function_parameter_count
-  - trailing_whitespace
-  - leading_whitespace
-  - operator_whitespace
   - file_length
   - mark
   - unused_closure_parameter
@@ -28,6 +22,21 @@ disabled_rules: # rule identifiers to exclude from running
   - shorthand_operator
   - trailing_comma
   - unused_optional_binding
+  - private_over_fileprivate
+  - empty_enum_arguments
+  - discarded_notification_center_observer
+  - block_based_kvo
+  - nesting
+  - is_disjoint
+  - multiple_closures_with_trailing_closure
+  - fallthrough
+  - switch_case_alignment
+  - trailing_whitespace
+  - leading_whitespace
+  - operator_whitespace
+  - legacy_cggeometry_functions
+  - unneeded_break_in_switch
+  - closure_parameter_position
 opt_in_rules: # some rules are only opt-in
   - closing_brace
   - opening_brace

Account/FxAClient10.swift

@@ -146,7 +146,7 @@ open class FxAClient10 {
         if kB.count != 32 {
             return nil
         }
-        return kB.sha256.subdata(in:  0..<16).hexEncodedString
+        return kB.sha256.subdata(in: 0..<16).hexEncodedString
     }
 
     open class func quickStretchPW(_ email: Data, password: Data) -> Data {