Bug 1791226 - Don't paint line-clamped lines. r=layout-reviewers,dshin

This matches the proposal in
w3c/csswg-drafts#10816, and creates much better
behavior.

Differential Revision: https://phabricator.services.mozilla.com/D157578

UltraBlame original commit: cf9f54eef33465d089f850a55da5734a911fdac4

Author: marco-c

layout/generic/TextOverflow.cpp

@@ -4719,9 +4719,8 @@ f
 f
 -
 >
-HasAnyStateBits
+HasLineClampEllipsis
 (
-NS_BLOCK_HAS_LINE_CLAMP_ELLIPSIS
 )
 ;
 }
@@ -4754,9 +4753,8 @@ return
 aBlockFrame
 -
 >
-HasAnyStateBits
+HasLineClampEllipsis
 (
-NS_BLOCK_HAS_LINE_CLAMP_ELLIPSIS
 )
 ;
 }