remove third-party tag from applicationInfo's IDEA-CR-34985

this tag is deprecated and isn't used anymore due to IDEA-185044

community-resources/src/idea/IdeaApplicationInfo.xml

@@ -27,7 +27,6 @@
   <whatsnew url="https://www.jetbrains.com/idea/whatsnew/index.html"/>
   <keymap win="https://www.jetbrains.com/idea/docs/IntelliJIDEA_ReferenceCard.pdf"
           mac="https://www.jetbrains.com/idea/docs/IntelliJIDEA_ReferenceCard_Mac.pdf"/>
-  <third-party url="http://www.jetbrains.org/"/>
   <jetbrains-tv url="https://www.youtube.com/user/intellijideavideo"/>
 
   <statistics settings="https://www.jetbrains.com/idea/statistics/stat-assistant.xml"

python/educational-python/resources/idea/PyCharmEduApplicationInfo.xml

@@ -23,6 +23,5 @@
   <feedback eap-url="https://youtrack.jetbrains.com/newissue?project=EDU&amp;clearDraft=true&amp;c=Affected+versions+$BUILD&amp;description=$DESCR"
             release-url="https://www.jetbrains.com/feedback/feedback.jsp?product=EduTools&amp;ide=PCE"/>
   <whatsnew url="https://www.jetbrains.com/pycharm-edu/whatsnew/"/>
-  <third-party url="https://confluence.jetbrains.com/display/PYH/Third-Party+Software+Used+by+PyCharm"/>
   <jetbrains-tv url="https://www.youtube.com/playlist?list=PLQ176FUIyIUY5Ii58pzoZhS_3qIBL80nz"/>
 </component>

python/python-community-ide-resources/resources/idea/PyCharmCoreApplicationInfo.xml

@@ -24,6 +24,5 @@
   <feedback eap-url="https://youtrack.jetbrains.com/newissue?project=PY&amp;clearDraft=true&amp;c=Affected+versions+$BUILD&amp;description=$DESCR"
             release-url="https://www.jetbrains.com/feedback/feedback.jsp?product=PyCharm&amp;build=$BUILD&amp;timezone=$TIMEZONE&amp;eval=$EVAL"/>
   <whatsnew url="https://www.jetbrains.com/pycharm/whatsnew/index.html"/>
-  <third-party url="https://confluence.jetbrains.com/display/PYH/Third-Party+Software+Used+by+PyCharm"/>
   <jetbrains-tv url="https://www.youtube.com/playlist?list=PLQ176FUIyIUY5Ii58pzoZhS_3qIBL80nz"/>
 </component>