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svn:author
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kevans
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svn:date
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2020-08-28T18:12:06.210938Z
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svn:log
V 303
MFH: r546780

x11-wm/tvtwm: Fix build with LLVM 11

The fix for this is identical to that of x11-wm/piewm; remove the patch that
explicitly de-externs yylineno when it's explicitly defined in another
compilation unit (by flex).

PR:		248976

Approved by:	ports-secteam (implicit, -fno-common build fix)

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