[libkwinglutils] Revert version hack for Qualcomm Adreno on libhybris

The idea to set proper version is good, but it results in epoxy
thinking it does not have the entry points and terminating KWin.

autotests/libkwineffects/data/glplatform/qualcomm-adreno-330-libhybris-gles-3.0

@@ -7,7 +7,7 @@ ShadingLanguageVersion=OpenGL ES GLSL ES 3.00
 [Settings]
 GLSL=true
 TextureNPOT=true
-GLVersion=3,0
+GLVersion=2,0
 GLSLVersion=3,0
 GLES=true
 Adreno=true

libkwineffects/kwinglplatform.cpp

@@ -800,12 +800,6 @@ void GLPlatform::detect(OpenGLPlatformInterface platformInterface)
     else if (m_vendor == "Qualcomm") {
         m_driver = Driver_Qualcomm;
         m_chipClass = detectQualcommClass(m_renderer);
-        // version specific overwrite for libhybris disabling OpenGL ES 3
-        if (isGLES() && m_glVersion == kVersionNumber(2, 0) && m_glslVersion >= kVersionNumber(3, 0)) {
-            if (m_version.contains("OpenGL ES 3.0")) {
-                m_glVersion = kVersionNumber(3, 0);
-            }
-        }
     }
 
     else if (m_renderer == "Software Rasterizer") {