A better fix for tab-line mouse highlight on TTY frames

A better fix for tab-line mouse highlight on TTY frames

* src/dispnew.c (mode_line_string):
* src/xdisp.c (note_mode_line_or_margin_highlight): Remove
recently-added workarounds for incorrect TTY mouse highlight:
they are no longer needed.
(mark_window_display_accurate_1): Set the header_line_p and
tab_line_p flags of the window's current_matrix if the window
displays these.
(display_mode_line): Set the header_line_p and tab_line_p
flags of the window's desired_matrix if the window displays
these.  (Bug#37807)