Merge remote-tracking branch 'origin/remove-osd' into integration_2026_w13 (!4004)

Remove OSD, some scripts, oaisim references

The README says:
  It is just generating the XML file and it is placing it in
  $(OPENAIR_TARGETS)/SIMU/EXAMPLE/OSD/WEBXML/ or http://localhost/xmlfile/
  so that the oaisim could pars and run the simulation/emulation

oaisim does not exist anymore, and corresponding simulation cannot be done.
Also, it requires XAMPP and similar technologies, that I think nobody uses
in the context of OAI.
Remove also most references to oaisim.
Remove some scripts that are likely not used by anybody, or straight useless.

common/utils/LOG/README.txt

@@ -5,7 +5,6 @@ Signals may have two types:
 - Variables to dump the state of a variable (range 0..2^64 - 1).
 - Functions to log function usage (implies two call to VCD API: IN and OUT)
 
-This module is always built in, but is only used when -V oaisim option is added.
 The VCD file generated is called openair_vcd_dump.vcd and is located in the execution folder.
 
 Usage:

common/utils/T/DOC/T/basic.md

@@ -56,9 +56,7 @@ softmodem to wait for a tracer. The default port is 2021.
 The option `--T_dont_fork` allows one to use gdb to debug problems
 with the softmodem. Note that you then may have some "zombie"
 processes after crashes, in which case you can run
-`sudo killall -9 lte-softmodem` to get rid of them (`lte-softmodem`
-to be replaced by the program you trace, like `lte-softmodem-nos1`
-or `oaisim`).
+`sudo killall -9 lte-softmodem` to get rid of them.
 
 The option `--T_stdout` also accepts values 0 (to disable output
 on the terminal and only use the T tracer) and 1 (to disable

common/utils/T/DOC/T/record.md

@@ -11,7 +11,7 @@ to activate/deactivate specific traces):
 ./record -d ../T_messages.txt -o record.raw -ON -off VCD -off HEAVY -off LEGACY_GROUP_TRACE -off LEGACY_GROUP_DEBUG
 ```
 
-And then you run the program to trace (`lte-softmodem`, `oaisim`, whatever)
+And then you run the program to trace (`lte-softmodem`, `nr-softmodem`, whatever)
 as explained in [basic usage](./basic.md).
 
 To stop the recording, you simply press `control+c` to end `record`.

common/utils/T/DOC/T/replay.md

@@ -5,7 +5,7 @@ First, read the [basic usage](./basic.md) to compile things.
 Then, read [record](./record.md) to know how to record a trace.
 
 To replay, you use the `replay` program. It will act
-as a *tracee* (`lte-softmodem`, `oaisim`, etc.).
+as a *tracee* (`lte-softmodem`, `nr-softmodem`, etc.).
 
 Then you use your usual tracer, eg. `enb` or `textlog`.