Autogen: Remove <target_name>_autogen_timestamp_deps target
Since !9340 (merged) reorganized the dependency order for the timestamp
target,
<target_name>_autogen_timestamp_deps
is generated as phony edge with no inputs
. So this commit removes
<target_name>_autogen_timestamp_deps
.
The dependency graph before
original dependencies of '_autogen' target <- _autogen_timestamp_deps <-'/timestamp' file <- '_autogen' target
The dependency graph after
original dependencies of '_autogen' target <-'/timestamp' file <- '_autogen' target
Fixes: #26080
Edited by Brad King