PVS-Studio warning V501 for QT

bool qt_resolve_glsl_extensions(QGLContext *ctx)
{
  ...
  return glCreateShader &&
    glShaderSource &&
    glCompileShader &&
    glDeleteProgram &&      <<<---
    glCreateProgram &&
    glAttachShader &&
    glDetachShader &&
    glLinkProgram &&
    glUseProgram &&
    glDeleteProgram &&      <<<---
    glGetShaderInfoLog &&
    glGetShaderiv &&
    glGetShaderSource &&
    glGetProgramiv &&
    glGetProgramInfoLog &&
    glGetUniformLocation &&
    glUniform1fv &&
    glUniform2fv &&
    glUniform3fv &&
    glUniform4fv &&
    glUniform1i &&
    glUniform1iv &&
    glUniformMatrix2fv &&
    glUniformMatrix3fv &&
    glUniformMatrix4fv &&
    glBindAttribLocation &&
    glGetAttribLocation &&
    glVertexAttrib1fv &&
    glVertexAttrib2fv &&
    glVertexAttrib3fv &&
    glVertexAttrib4fv &&
    glVertexAttribPointer &&
    glDisableVertexAttribArray &&
    glEnableVertexAttribArray;
  ...
}

There's no error. It's just an unnecessary line. It is still useful to find and fix such code fragments: your code will become a bit shorter.

This suspicious code was found in QT project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions to the left and to the right of the '&&' operator. QtOpenGL qglextensions.cpp 367

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