Don't hide publicly used functions.

I desperately need tests for GL functionality.

src/AbstractTexture.h

@@ -268,8 +268,8 @@ class MAGNUM_EXPORT AbstractTexture {
         void MAGNUM_LOCAL bindInternal();
 
         #ifndef MAGNUM_TARGET_GLES
-        template<UnsignedInt dimensions> void MAGNUM_LOCAL image(GLenum target, GLint level, Image<dimensions>* image);
-        template<UnsignedInt dimensions> void MAGNUM_LOCAL image(GLenum target, GLint level, BufferImage<dimensions>* image, Buffer::Usage usage);
+        template<UnsignedInt dimensions> void image(GLenum target, GLint level, Image<dimensions>* image);
+        template<UnsignedInt dimensions> void image(GLenum target, GLint level, BufferImage<dimensions>* image, Buffer::Usage usage);
         #endif
 
         GLenum _target;