rocm_smi.py: Remove extraneous line during process termination

During the tail end when process is terminating, subprocess module fails
to find the process. This results in extraneous printing of a line with
char 'b'. Fix this.

BUG: SWDEV-296409

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Change-Id: I39aacf8ae948a5acec0aa93296cc0e0aec88b3ef


[ROCm/amdsmi commit: a03acf2c07]

projects/amdsmi/python_smi_tools/rocm_smi.py

@@ -265,7 +265,6 @@ def getProcessName(pid):
     try:
         pName = str(subprocess.check_output("ps -p %d -o comm=" % (int(pid)), shell=True))
     except subprocess.CalledProcessError as e:
-        print(e.output)
         pName = 'UNKNOWN'
 
     if pName == None: