[!343] remove extra semicolon after operator() in Creators
Merge branch 'issue/extra_semicolon' into 'master'
ref:core/dune-istl This is a small MR removing unnecessary semicolon after some functions recently introduced by the solver creators. These semicolon produce lots of compiler warnings when compiled with -pedantic
See merge request core/dune-istl!343
(cherry picked from commit 05ca61a7)
4b1ccac6 removed extra semicolon after operator() in Creators