Disable backtrace in CI build until backtrace log linking is resolved. (#4764)

ci/build-ci.sh

@@ -48,7 +48,7 @@ cmake \
 -DNANO_WARN_TO_ERR=ON \
 -DCMAKE_BUILD_TYPE=${BUILD_TYPE:-Debug} \
 -DQt5_DIR=${qt_dir} \
-${BACKTRACE:-} \
+#${BACKTRACE:-} \
 ${SANITIZERS:-} \
 ..
 

ci/build.sh

@@ -66,7 +66,7 @@ cmake \
 -DCI_VERSION_PRE_RELEASE=${CI_VERSION_PRE_RELEASE:-OFF} \
 ${CMAKE_SANITIZER:-} \
 ${CMAKE_QT_DIR:-} \
-${CMAKE_BACKTRACE:-} \
+#${CMAKE_BACKTRACE:-} \
 ${SRC}
 
 number_of_processors() {