No you can delete operator name,but you can hide operator name in "layout.xml"
You will find layout file in your phone -> tpa/system/layout/layout.xml
Open layout with notepad and find this section
"StatusIndication" - in that section find this lines
<attr value="1"/> <attr value="239"/> <attr value="-2"/> <attr value="-3"/> <attr value="10"/> <!-- 0 -->
<attr value="1"/> <attr value="239"/> <attr value="34"/> <attr value="56"/> <attr value="10"/> <!-- 1 -->
<attr value="1"/> <attr value="239"/> <attr value="34"/> <attr value="80"/> <attr value="10"/> <!-- 2 -->
<attr value="1"/> <attr value="239"/> <attr value="55"/> <attr value="80"/> <attr value="10"/> <!-- 3 -->
<attr value="1"/> <attr value="239"/> <attr value="82"/> <attr value="104"/> <attr value="0"/> <!-- 4 -->
and in each lines change 3rd and 4th value with -2 and -3 like I make in first line.
Thats will be all and now just upload your modified layout to phone