Drop pedantic matrix from .travis.yml

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67176 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.travis.yml

@@ -224,42 +224,6 @@ env:
           - zlib1g-dev:i386
           - zlib1g:i386
 
-  - &pedanticism
-    name: -ansi -pedantic
-    <<: *linux
-    <<: *make-test-only
-    compiler: clang
-    env:
-      - GCC_FLAGS='-ansi -Werror=pedantic -pedantic-errors -std=iso9899:1990'
-      - CONFIG_FLAG=
-      - JOBS=
-      - >-
-        warnflags='
-        -Wall
-        -Wextra
-        -Werror=declaration-after-statement
-        -Werror=deprecated-declarations
-        -Werror=division-by-zero
-        -Werror=extra-tokens
-        -Werror=implicit-function-declaration
-        -Werror=implicit-int
-        -Werror=long-long
-        -Werror=pointer-arith
-        -Werror=shorten-64-to-32
-        -Werror=write-strings
-        -Wmissing-noreturn
-        -Wno-constant-logical-operand
-        -Wno-missing-field-initializers
-        -Wno-overlength-strings
-        -Wno-parentheses-equality
-        -Wno-self-assign
-        -Wno-tautological-compare
-        -Wno-unused-local-typedef
-        -Wno-unused-parameter
-        -Wunused-variable
-        '
-      - LDFLAGS=-Wno-unused-command-line-argument
-
   - &rubyspec
     name: ruby/spec on Ruby 2.3 # to ensure version guards are correctly added
     <<: *linux
@@ -299,7 +263,6 @@ matrix:
     - <<: *x86_64-linux
     - <<: *i686-linux
     - <<: *jemalloc
-    - <<: *pedanticism
     - <<: *ASAN
     - <<: *MSAN
     - <<: *UBSAN