[ci] Specified redis dependency twice

tox.ini

@@ -16,7 +16,6 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test3.txt
        -r{toxinidir}/requirements/test-ci.txt
        -r{toxinidir}/requirements/extras/auth.txt
-       -r{toxinidir}/requirements/extras/redis.txt
 setenv = C_DEBUG_TEST = 1
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install -U -r{toxinidir}/requirements/dev.txt
@@ -28,7 +27,6 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test3.txt
        -r{toxinidir}/requirements/test-ci.txt
        -r{toxinidir}/requirements/extras/auth.txt
-       -r{toxinidir}/requirements/extras/redis.txt
 setenv = C_DEBUG_TEST = 1
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install -U -r{toxinidir}/requirements/dev.txt
@@ -40,7 +38,6 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test.txt
        -r{toxinidir}/requirements/test-ci.txt
        -r{toxinidir}/requirements/extras/auth.txt
-       -r{toxinidir}/requirements/extras/redis.txt
 setenv = C_DEBUG_TEST = 1
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install -U -r{toxinidir}/requirements/dev.txt
@@ -52,7 +49,6 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test.txt
        -r{toxinidir}/requirements/test-ci.txt
        -r{toxinidir}/requirements/dev.txt
-       -r{toxinidir}/requirements/extras/redis.txt
 setenv = C_DEBUG_TEST = 1
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install -q -U -r{toxinidir}/requirements/dev.txt
@@ -65,7 +61,6 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test-pypy3.txt
        -r{toxinidir}/requirements/test-ci.txt
        -r{toxinidir}/requirements/dev.txt
-       -r{toxinidir}/requirements/extras/redis.txt
 setenv = C_DEBUG_TEST = 1
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install -q -U -r{toxinidir}/requirements/dev.txt