PEL:Removed raising exception if SRCs are not present

Changes:
     - Modified method "fetch_all_src" from raising exception if there are no SRCs in the system

Tested:
     - python -m py_compile pel_utils.py

Signed-off-by: Anusha Dathatri <adathatr@in.ibm.com>
Change-Id: If40f675c8a00a599a0fbd04c10257e7e055bf975
diff --git a/lib/pel_utils.py b/lib/pel_utils.py
index 7db4ac6..a99a5b5 100644
--- a/lib/pel_utils.py
+++ b/lib/pel_utils.py
@@ -178,8 +178,6 @@
             pel_id_list = pel_data.keys()
             for pel_id in pel_id_list:
                 src_id.append(pel_data[pel_id]["SRC"])
-        else:
-            raise peltool_exception("No PEL entry found ..")
     except Exception as e:
         raise peltool_exception("Failed to fetch all SRCs : " + str(e))
     return src_id