Cleanup Symbian specific rules from .gitignore

Change-Id: I0a47ae19d327af54e54cca94a04d90b543855988
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

.gitignore

@@ -232,35 +232,6 @@ tmp-debug-shared
 tmp-release
 tmp-release-shared
 
-# Symbian build system generated files
-# ---------------------
-
-ABLD.BAT
-bld.inf*
-*.mmp
-*.mk
-*.rss
-*.loc
-!s60main.rss
-*.pkg
-plugin_commonu.def
-*.qtplugin
-*.sis
-*.sisx
-*.lst
-*.exe
-*.mif
-*.rsc
-*.sym
-*.lib
-
-# runonphone crash dumps
-d_exc_*.txt
-d_exc_*.stk
-
-# Generated by abldfast.bat from devtools.
-.abldsteps.*
-
 qtc-debugging-helper
 qtc-qmldump
 qtc-qmldbg