Recent patches added indentation checks that discovered some cosmetic
issues at the cost of making this check last as long as the rest of
syntax-check combined on my system. Also, they're moving closer
to us implementing yet another C parser (docs/apibuild.py being the
other one).

Revert the following commits:
commit 11e1f11d
    syntax-check: Check for incorrect indentation in function body
commit 2585a79e
    build-aux:check-spacing: Introduce a new rule to check misaligned stuff in parenthesises
commit a033182f
    build-aux:check-spacing: Add wrapper function of CheckCurlyBrackets
commit 6225626b
    build-aux:check-spacing: Add wrapper function of CheckWhiteSpaces
commit c3875129
    build-aux:check-spacing: Add wrapper function of KillComments
commit e995904c
    build-aux:check-spacing: Add wrapper function of CheckFunctionBody
commit 11e1f11d
    syntax-check: Check for incorrect indentation in function body

This brings the speed of the script to a tolerable level and lets it
focus on the more visible issues.
Signed-off-by: NJán Tomko <jtomko@redhat.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>