Reduce logspam for ANGLE dlopen messages

A long-lived line of code in the EGL load_angle() function is
producing logcat spam.  This same type of log message does not exist
in load_updated_driver().  It will be fine to remove it from
load_angle().

Test: atest CtsOpenGLTestCases
Bug: 265344106
Change-Id: I41d694ea9ffa397666c95f2bc009dff2fc1cd10e