diff --git a/src/compiler/glsl/standalone_scaffolding.cpp b/src/compiler/glsl/standalone_scaffolding.cpp
index a88696f89d1..5d2ede26852 100644
--- a/src/compiler/glsl/standalone_scaffolding.cpp
+++ b/src/compiler/glsl/standalone_scaffolding.cpp
@@ -184,7 +184,6 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
 
    ctx->API = api;
 
-   ctx->Extensions.dummy_false = false;
    ctx->Extensions.dummy_true = true;
    ctx->Extensions.ARB_compute_shader = true;
    ctx->Extensions.ARB_compute_variable_group_size = true;
diff --git a/src/mesa/main/extensions_table.h b/src/mesa/main/extensions_table.h
index a6953030c05..a135568a0b8 100644
--- a/src/mesa/main/extensions_table.h
+++ b/src/mesa/main/extensions_table.h
@@ -423,7 +423,6 @@ EXT(OES_compressed_ETC1_RGB8_texture        , OES_compressed_ETC1_RGB8_texture
 EXT(OES_compressed_paletted_texture         , dummy_true                             ,  x ,  x , ES1,  x , 2003)
 EXT(OES_copy_image                          , OES_copy_image                         ,  x ,  x ,  x ,  30, 2014)
 EXT(OES_depth24                             , dummy_true                             ,  x ,  x , ES1, ES2, 2005)
-EXT(OES_depth32                             , dummy_false                            ,  x ,  x ,  x ,  x , 2005)
 EXT(OES_depth_texture                       , ARB_depth_texture                      ,  x ,  x ,  x , ES2, 2006)
 EXT(OES_depth_texture_cube_map              , OES_depth_texture_cube_map             ,  x ,  x ,  x , ES2, 2012)
 EXT(OES_draw_buffers_indexed                , ARB_draw_buffers_blend                 ,  x ,  x ,  x ,  30, 2014)
@@ -453,8 +452,6 @@ EXT(OES_shader_io_blocks                    , dummy_true
 EXT(OES_shader_multisample_interpolation    , OES_sample_variables                   ,  x ,  x ,  x ,  30, 2014)
 EXT(OES_single_precision                    , dummy_true                             ,  x ,  x , ES1,  x , 2003)
 EXT(OES_standard_derivatives                , OES_standard_derivatives               ,  x ,  x ,  x , ES2, 2005)
-EXT(OES_stencil1                            , dummy_false                            ,  x ,  x ,  x ,  x , 2005)
-EXT(OES_stencil4                            , dummy_false                            ,  x ,  x ,  x ,  x , 2005)
 EXT(OES_stencil8                            , dummy_true                             ,  x ,  x , ES1, ES2, 2005)
 EXT(OES_stencil_wrap                        , dummy_true                             ,  x ,  x , ES1,  x , 2002)
 EXT(OES_surfaceless_context                 , dummy_true                             ,  x ,  x , ES1, ES2, 2012)
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index b93991968f5..d847e27c0c1 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -4272,7 +4272,6 @@ struct gl_extensions
 {
    GLboolean dummy;  /* don't remove this! */
    GLboolean dummy_true;  /* Set true by _mesa_init_extensions(). */
-   GLboolean dummy_false; /* Set false by _mesa_init_extensions(). */
    GLboolean ANGLE_texture_compression_dxt;
    GLboolean ARB_ES2_compatibility;
    GLboolean ARB_ES3_compatibility;