Revert "Highlight `super` and `this` as keywords in JS/TS/TSX" (#26342)

Ben Kunkle created

Reverts zed-industries/zed#25135

This approach was not the best as explained in the response to the
original PR. Likely, the better approach is to create a newer specific
scope for these kinds of variables under the `@variable` prefix so that
themes can control these pseudo-keywords specifically

Change summary

crates/languages/src/javascript/highlights.scm | 4 ++--
crates/languages/src/tsx/highlights.scm        | 4 ++--
crates/languages/src/typescript/highlights.scm | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)

Detailed changes