Merge pull request #6709 from apple/revert-6694-linux-build-ninja

Revert "utils: Make linux build ninja because the installed ninja is 1.5.1 for"

Author: erg

utils/build-presets.ini

@@ -721,7 +721,6 @@ lit-args=-v
 
 dash-dash
 
-build-ninja
 install-foundation
 install-libdispatch
 reconfigure
@@ -1458,4 +1457,4 @@ dash-dash
 
 swift-stdlib-build-type=RelWithDebInfo
 swift-stdlib-enable-assertions=true
-build-serialized-stdlib-unittest
+build-serialized-stdlib-unittest