Remove valgrind-dbgsym

This package doesn't seem to exist anymore and results in

```base: E: Unable to locate package valgrind-dbgsym```

when trying to build.

From the ubuntu maintainers, this doesn't seem necessary anymore

```
    If you are on Ubuntu Jammy (22.04) or later, you do not need to
    worry about installing debug symbol packages anymore. The
    Ubuntu project maintains a Debuginfod server, and GDB and other
    debuginfo-consumer applications support it out of the box. For
    more information about it, please refer to this page.

    If you are on Ubuntu Noble (24.04) or later, Debuginfod is the
    preferred method as the following information is outdated and, due
    to a new format for the sources.list entries being moved to the
    deb822 format.

https://wiki.ubuntu.com/Debug%20Symbol%20Packages#Debuginfod
```

Change-Id: Ib7d221763b30d433c19cfad7fe3b8462ffcb7383
Signed-off-by: Ed Tanous <ed@tanous.net>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
1 file changed