SDL: Cleaned up .gitignore, removing autotools files

From 074a2b0f30284f5eb425b8a6bc980c737f230a12 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sat, 24 Dec 2022 08:39:29 -0800
Subject: [PATCH] Cleaned up .gitignore, removing autotools files

This also removes various names for build directories. We're not going to add everyone's random build directory name, if you want git to appear clean you can build in the build subdirectory or out of tree.
 .gitignore | 29 ++---------------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/.gitignore b/.gitignore
index 1387372a1178..855580e211be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,20 +1,5 @@
@@ -168,13 +153,3 @@ test/testvulkan