Update L2-tests.yml

Author: Prathyushakothuru

.github/workflows/L2-tests.yml

@@ -338,7 +338,6 @@ jobs:
           -DCMAKE_DISABLE_FIND_PACKAGE_RBus=ON
           -DPLUGIN_AVINPUT=OFF
           -DPLUGIN_AVOUTPUT=OFF
-          -DPLUGIN_DUMMY=ON
           -DAVOUTPUT_TV=OFF
           -DUSE_THUNDER_R4=ON
           -DPLUGIN_L2Tests=ON
@@ -413,7 +412,6 @@ jobs:
           -DCMAKE_DISABLE_FIND_PACKAGE_RBus=ON
           -DPLUGIN_AVINPUT=OFF
           -DPLUGIN_AVOUTPUT=OFF
-          -DPLUGIN_DUMMY=ON
           -DAVOUTPUT_TV=OFF
           -DUSE_THUNDER_R4=ON
           -DPLUGIN_L2Tests=ON