I was thinking of trains like Bristol commuter services which doesn't reverse at Yate or Cam and Dursley, but then goes miles through open fields in Gloucestershire, rather than making extra trip through densely populated South Gloucestershire to Bristol.
Both Yate and Cam and Dursley are "new" stations that opened/reopened long after the original stations closed. And neither was provided with any specific "turn back" facilities or any extra points or crossovers specificity for passenger trains. So in both of these cases, no points or crossovers have been taken out, because they did not exist since the current stations opened/reopened.
Yes, there may have been crossovers when the earlier stations existed, but whether they were in the correct place and whether suitable signals existed to enable a train to terminate and change direction is another matter.
For Cam and Dursley, before the current station was built, there were no points at the site, it's just plain line.
For Yate, since the current station was built, the only points that have been removed are the points for Yate North Ground Frame (G.F.). Indeed, before this was removed, the layout at Yate had not changed since the early 1970s. But this G.F. was just access for a disused siding via a trailing connection on the down line. Of no use to passenger trains due to needing a G.F. operator and the (very limited) signalling that was provided for this, only being a "calling on" shunt signal and a limit of shunt signal.
The crossover at Yate South is still present and in use. But it's on the Bristol side of the station and is a facing crossover. So of no use for an up train that terminates at the up platform.
However, an up train that calls at Yate can be routed onto the Tytherington branch. The driver can change ends. The train can then return to the up platform. Then run "wrong road" in the down direction on the up line back to Westerleigh Junction where it can crossover onto the down line, so it can return to Bristol Parkway or beyond. Note that a train doing this move cannot call at the down platform.
However, the signal for the move along the up line and onto the Tytherington branch is only a "calling on" shunt signal. And the signal to control the movement from the Tytherington branch back towards Westerleigh junction is an elevated position light shunt signal.
Some years ago, there was talk of providing a "turn back" facility. This did not happen, but I don't know if this idea has made any progress since 2024.
The only other crossovers north of Yate were at Charfield (near the site of the former station). Here, there use to be another G.F. which controlled two crossovers. One facing and one trailing. However, no signals of any type were provided. So, again, of no use to passenger trains.