[intellij-sh] Remove fish support because of incompatible syntax
[intellij-sh] Remove fish support because of incompatible syntax

GitOrigin-RevId: 25d3fdc776cfcb3387c7906e24a41222204812e8
allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community