Remove linter braces rule

Braces are already checked by clang-format, and this rule doesn't
allow me to use initializer list constructors/uniform initialization
in unit tests

Author: Lukasz A.J. Wrona

scripts/cpplint.py

@@ -3974,13 +3974,6 @@ def CheckBracesSpacing(filename, clean_lines, linenum, nesting_state, error):
     for offset in xrange(endlinenum + 1,
                          min(endlinenum + 3, clean_lines.NumLines() - 1)):
       trailing_text += clean_lines.elided[offset]
-    # We also suppress warnings for `uint64_t{expression}` etc., as the style
-    # guide recommends brace initialization for integral types to avoid
-    # overflow/truncation.
-    if (not Match(r'^[\s}]*[{.;,)<>\]:]', trailing_text)
-        and not _IsType(clean_lines, nesting_state, leading_text)):
-      error(filename, linenum, 'whitespace/braces', 5,
-            'Missing space before {')
 
   # You shouldn't have a space before a semicolon at the end of the line.
   # There's a special case for "for" since the style guide allows space before