gitignore: Set LC_COLLATE=C sort standard for file

Remove the usually trivial line comments about these being from Eclipse.

Change-Id: I206a4b636ea8b54077cb12dc10e008cb4e601809
Signed-off-by: Marco Miller <marco.miller@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/tracecompass-test-traces/+/190365
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>

.gitignore

@@ -1,8 +1,6 @@
-# Generated by the build
-target/
-MANIFEST.MF
-
-# Eclipse project files
-.project
+# LC_COLLATE=C sort
 .classpath
+.project
 .settings/
+MANIFEST.MF
+target/