removed example with multiline multielement tuple, since it different in different variants

  and more text cleanup

Author: rssh

content/NNN-one-element-tuple-syntax.md

@@ -67,8 +67,6 @@ There is also no concise syntax for empty tuple types - `EmptyTuple` must be wri
 val empty: EmptyTuple = EmptyTuple  // No shorthand syntax available
 ```
 
-Scala supports trailing commas in multi-line contexts (parameters, arguments, imports, tuples, etc.) when the closing delimiter is on its own line (SIP-27). However, there is no way to use a trailing comma to disambiguate single-element tuples from parenthesized expressions, since `(a,)` is a syntax error.
-
 ## Proposed Solution
 
 ### High-Level Overview
@@ -178,15 +176,6 @@ val x = (1,
 
 Should this be a single-element tuple `(1,)` or a parenthesized expression `(1)` with an ignored trailing comma? This proposal ensures it is consistently parsed as a single-element tuple, regardless of whitespace.
 
-Similarly, for multi-element tuples:
-
-```scala
-val y = (1, 2,
-)
-```
-
-The trailing comma is preserved and parsed as part of the tuple syntax.
-
 The implementation requires slightly more complex interaction between the scanner and parser to preserve trailing commas in tuple contexts while maintaining existing behavior elsewhere.
 
 #### Interaction with Pattern Matching