[DellEMC Z9332f] Remove duplicate ipmihelper.py script (#6536)

Fixes #6445

Because the ipmihelper.py script in the 9332 folder is slightly different than the common one (due to LGTM fixes), when the common one gets copied during build time it causes the workspace/build to become dirty.

Signed-off-by: Danny Allen <daall@microsoft.com>

platform/broadcom/sonic-platform-modules-dell/common/ipmihelper.py

@@ -38,7 +38,7 @@ def get_ipmitool_raw_output(args):
         proc.wait()
         if not proc.returncode:
             result = stdout.rstrip('\n')
-    except:
+    except EnvironmentError:
         pass
 
     for i in result.split():
@@ -180,7 +180,7 @@ def _get_ipmitool_fru_print(self):
             proc.wait()
             if not proc.returncode:
                 result = stdout.decode('utf-8').rstrip('\n')
-        except:
+        except EnvironmentError:
             pass
 
         return result
@@ -253,7 +253,7 @@ def get_fru_data(self, offset, count=1):
             proc.wait()
             if not proc.returncode:
                 result = stdout.decode('utf-8').rstrip('\n')
-        except:
+        except EnvironmentError:
             is_valid = False
 
         if (not result) or (not is_valid):