Revert "Title: [RISCV] Add missing part of instruction vmsge {u}. VX Review By: craig.topper  Differential Revision : https://reviews.llvm.org/D100115"

This reverts commit 4d9ccb18.

fallback syntax used when we fail to find a '.clang-format' file. Adjust
variable names appropriately.

Update the editor integration pieces that specify a '-style' option to
specify it as '-style=file'. I left the functionality in place because
even if the preferred method is to use '.clang-format' files, this way
if someone needs to clobber the style in their editor we show how to do
so in these examples.

Also check in a '.clang-format' file for Clang to ensure that separate
checkouts and builds of Clang from LLVM can still get the nice
formatting. =] This unfortunately required nuking the test for the
absence of a '.clang-format' file as now the directory happening to be
under your clang source tree will cause there to always be a file. ;]

llvm-svn: 189741

correct style for the LLVM tree as well as projects checked out under
projects and tools.

llvm-svn: 189737